GMC Sierra 3500Hd MPG by Year & Engine (EPA)

Name: GMC Sierra 3500Hd EPA Fuel Economy by Model Year (1989–2026)
Creator: VehiSales
License: https://creativecommons.org/licenses/by/4.0/

EPA fuel-economy ratings for every rated GMC Sierra 3500Hd model year from 1989 to 2026 — each engine and transmission with its official city, highway and combined figures. Over these years the Sierra 3500Hd has been offered with Electric, 3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl, 4.3L 6-cyl powertrains; the most efficient version is the 2025 (up to 26 MPG combined). Electric versions are shown in MPGe — a different unit, listed separately from gas MPG. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.

GMC Sierra 3500Hd fuel economy by year

Year	Combined	Engines	Median used price	For sale
2026	15–25 MPG · 64–68 MPGe	Electric, 3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl	$63,230	28 listings
2025	15–26 MPG · 64 MPGe	Electric, 3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl	$75,995	241 listings
2024	15–25 MPG	3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl	$69,577	441 listings
2023	15–26 MPG	3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl	$57,999	195 listings
2022	14–26 MPG	3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl	$53,435	21 listings
2021	14–26 MPG	3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl	$55,028	34 listings
2020	15–26 MPG	3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl, 4.3L 6-cyl	$49,981	117 listings
2019	15–21 MPG	2.7L 4-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl	$50,999	27 listings
2018	17–20 MPG	4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl	$38,998	31 listings
2017	17–20 MPG	5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl	$39,499	56 listings
2016	17–20 MPG	5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl	$38,387	74 listings
2015	17–20 MPG	4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl	$36,999	59 listings
2014	17–20 MPG	4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl	—	—
2013	14–21 MPG	6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl	—	—
2012	14–21 MPG	6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl	—	—
2011	14–21 MPG	6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl	—	—
2010	14–22 MPG	6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl	—	—
2009	14–21 MPG	6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl	—	—
2008	14–17 MPG	5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.0L 8-cyl, 6.2L 8-cyl	—	—
2007	14–17 MPG	5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.0L 8-cyl, 6.2L 8-cyl	—	—
2006	13–17 MPG	4.8L 8-cyl, 4.3L 6-cyl, 5.3L 8-cyl, 6.0L 8-cyl	—	—
2005	9–17 MPG	4.8L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl	—	—
2004	13–17 MPG	5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl	—	—
2003	13–16 MPG	4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl	—	—
2002	12–16 MPG	4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl	—	—
2001	11–17 MPG	4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl	—	—
2000	12–18 MPG	4.3L 6-cyl, 5.3L 8-cyl, 4.8L 8-cyl, 6.0L 8-cyl	—	—
1999	12–17 MPG	4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 5.0L 8-cyl, 5.7L 8-cyl, 6.0L 8-cyl	—	—
1998	13–18 MPG	4.3L 6-cyl, 5.0L 8-cyl, 6.5L 8-cyl, 5.7L 8-cyl	—	—
1997	13–18 MPG	4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl, 6.5L 8-cyl	—	—
1996	13–18 MPG	4.3L 6-cyl, 6.5L 8-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—
1995	12–19 MPG	6.5L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—
1994	12–19 MPG	6.5L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—
1993	12–18 MPG	6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—
1992	12–20 MPG	6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—
1991	12–20 MPG	6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—
1990	12–18 MPG	4.3L 6-cyl, 6.2L 8-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—
1989	12–19 MPG	6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl	—	—

2026 GMC Sierra 3500Hd: engines & MPG

The 2026 Sierra 3500Hd was EPA-rated in 25 versions (Electric, 3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 15 to 25 MPG; electric versions rated 64–68 MPGe. Used 2026 models currently list for a median of $63,230 on VehiSales (28 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra EV 20-mod battery, 11kW 15-mode charger	Electric	Automatic (A1)	Electricity	75	61	68 MPGe · 410 mi range
Sierra EV 14-mod battery, 11kW 15-mode charger	Electric	Automatic (A1)	Electricity	74	60	67 MPGe · 283 mi range
Sierra EV 20-mod battery, 19kW 15-mode charger	Electric	Automatic (A1)	Electricity	69	59	64 MPGe · 385 mi range
Sierra 2WD	3.0L 6-cyl	Automatic 10-spd	Diesel	23	28	25 MPG
Sierra 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	22	26	24 MPG
Sierra Mud Terrain Tires 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	21	24	23 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	18	21	20 MPG
Sierra 2WD with Sport Mode	2.7L 4-cyl	Automatic 8-spd	Regular	17	21	19 MPG
Sierra 4WD AT4X	3.0L 6-cyl	Automatic 10-spd	Diesel	19	20	19 MPG
Sierra 2WD with Sport Mode	5.3L 8-cyl	Automatic 10-spd	Regular	16	21	18 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	20	18 MPG
Sierra Mud Terrain Tires 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	16	17	17 MPG
Sierra Mud Terrain Tires 4WD (Flex Fuel)	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra 4WD with Sport Mode	2.7L 4-cyl	Automatic 8-spd	Regular	17	18	17 MPG
Sierra 4WD (Flex Fuel)	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra 4WD with Sport Mode	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	20	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	14	17	16 MPG
Sierra Mud Terrain Tires 4WD (Sport Mode)	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	19	16 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra Mud Terrain Tires 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	14	17	15 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	14	16	15 MPG
Sierra 4WD AT4X	6.2L 8-cyl	Automatic 10-spd	Premium	14	16	15 MPG

2025 GMC Sierra 3500Hd: engines & MPG

The 2025 Sierra 3500Hd was EPA-rated in 22 versions (Electric, 3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 15 to 26 MPG; electric version rated at 64 MPGe. Used 2025 models currently list for a median of $75,995 on VehiSales (241 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra EV	Electric	Automatic (A1)	Electricity	70	59	64 MPGe · 390 mi range
Sierra 2WD	3.0L 6-cyl	Automatic 10-spd	Diesel	23	29	26 MPG
Sierra 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	22	26	24 MPG
Sierra Mud Terrain Tires 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	21	24	23 MPG
Sierra 4WD AT4X	3.0L 6-cyl	Automatic 10-spd	Diesel	19	20	19 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	18	21	19 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	21	19 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	21	18 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	19	18 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	20	17 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	18	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	16 MPG
Sierra Mud Terrain Tires 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	16	17	16 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	19	16 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	16 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	14	16	15 MPG
Sierra 4WD AT4X	6.2L 8-cyl	Automatic 10-spd	Premium	14	16	15 MPG
Sierra Mud Terrain Tires 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	14	17	15 MPG

2024 GMC Sierra 3500Hd: engines & MPG

The 2024 Sierra 3500Hd was EPA-rated in 23 versions (3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 15 to 25 MPG. Used 2024 models currently list for a median of $69,577 on VehiSales (441 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 2WD	3.0L 6-cyl	Automatic 10-spd	Diesel	23	29	25 MPG
Sierra 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	23	27	24 MPG
Sierra Mud Terrain Tires 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	21	23	22 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	18	22	20 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	21	19 MPG
Sierra 4WD AT4X	3.0L 6-cyl	Automatic 10-spd	Diesel	19	20	19 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	21	18 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	20	18 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	20	18 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	18	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	20	17 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	19	16 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	16 MPG
Sierra Mud Terrain Tires 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	16	17	16 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	16 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	16 MPG
Sierra Mud Terrain Tires 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	14	17	15 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	14	17	15 MPG
Sierra 4WD AT4X	6.2L 8-cyl	Automatic 10-spd	Premium	14	16	15 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	14	17	15 MPG

2023 GMC Sierra 3500Hd: engines & MPG

The 2023 Sierra 3500Hd was EPA-rated in 19 versions (3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 15 to 26 MPG. Used 2023 models currently list for a median of $57,999 on VehiSales (195 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 2WD	3.0L 6-cyl	Automatic 10-spd	Diesel	24	29	26 MPG
Sierra 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	22	27	24 MPG
Sierra Mud Terrain Tires 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	21	23	22 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	19	21	20 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	19	22	20 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	18	20	19 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	21	18 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	20	18 MPG
Sierra Mud Terrain Tires 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	18	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	19	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	20	17 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	17	16 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	16 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	16 MPG
Sierra 4WD AT4X	6.2L 8-cyl	Automatic 10-spd	Premium	14	17	15 MPG
Sierra Mud Terrain Tires 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	14	17	15 MPG

2022 GMC Sierra 3500Hd: engines & MPG

The 2022 Sierra 3500Hd was EPA-rated in 28 versions (3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 26 MPG. Used 2022 models currently list for a median of $53,435 on VehiSales (21 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 2WD	3.0L 6-cyl	Automatic 10-spd	Diesel	23	30	26 MPG
Sierra 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	22	26	24 MPG
Sierra Mud Terrain Tires 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	20	23	21 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	19	22	20 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	21	18 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	21	18 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	17	20	18 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	20	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	15	20	17 MPG
Sierra Mud Terrain Tires 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	16	18	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	17 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	18	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	20	17 MPG
Sierra Mud Terrain Tires 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	14	18	16 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	18	16 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	17	16 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	14	19	16 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	19	16 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	14	19	16 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	16 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	14	17	15 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	14	17	15 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	13	17	15 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	13	17	15 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	16	15 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	14	18	15 MPG
Sierra Mud Terrain Tires 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	14	17	15 MPG
Sierra Mud Terrain Tires 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	13	17	14 MPG

2021 GMC Sierra 3500Hd: engines & MPG

The 2021 Sierra 3500Hd was EPA-rated in 35 versions (3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl), with combined economy from 14 to 26 MPG. Used 2021 models currently list for a median of $55,028 on VehiSales (34 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 2WD	3.0L 6-cyl	Automatic 10-spd	Diesel	23	30	26 MPG
Sierra 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	22	26	24 MPG
Sierra 4WD AT4	3.0L 6-cyl	Automatic 10-spd	Diesel	22	26	24 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	20	23	21 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	17	23	19 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	18	20	19 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	22	19 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	18	21	19 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	15	21	18 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 8-spd	Regular	16	21	18 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	21	18 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 10-spd	Regular	16	21	18 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	15	22	17 MPG
Sierra 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	16	21	17 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	16	20	17 MPG
Sierra Cab Chassis 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	15	19	17 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 10-spd	Regular	15	21	17 MPG
Sierra 4WD AT4	6.2L 8-cyl	Automatic 10-spd	Premium	15	19	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	18	16 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	16 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	21	16 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 8-spd	Regular	14	20	16 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	20	16 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	20	16 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	14	20	16 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 6-spd	Regular	14	18	16 MPG
Sierra 4WD AT4	6.2L 8-cyl	Automatic 10-spd	Premium	14	19	16 MPG
Sierra Cab Chassis 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	14	16	15 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	18	15 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	17	15 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	13	18	14 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	13	17	14 MPG

2020 GMC Sierra 3500Hd: engines & MPG

The 2020 Sierra 3500Hd was EPA-rated in 25 versions (3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl, 4.3L 6-cyl), with combined economy from 15 to 26 MPG. Used 2020 models currently list for a median of $49,981 on VehiSales (117 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 2WD	3.0L 6-cyl	Automatic 10-spd	Diesel	23	30	26 MPG
Sierra 4WD	3.0L 6-cyl	Automatic 10-spd	Diesel	22	26	24 MPG
Sierra 4WD AT4	3.0L 6-cyl	Automatic 10-spd	Diesel	22	26	24 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	20	23	21 MPG
Sierra 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	19	22	20 MPG
Sierra 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	19	22	20 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	17	24	20 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 10-spd	Regular	16	22	19 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	17	23	19 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	22	18 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 8-spd	Regular	16	21	18 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 10-spd	Regular	16	21	18 MPG
Sierra 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	20	17 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	16	21	17 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra 4WD AT4	6.2L 8-cyl	Automatic 10-spd	Premium	15	19	17 MPG
Sierra Cab Chassis 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	15	19	17 MPG
Sierra 4WD AT4	5.3L 8-cyl	Automatic 6-spd	Regular	14	18	16 MPG
Sierra 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	16 MPG
Sierra 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	19	16 MPG
Sierra Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	17	15 MPG
Sierra Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	18	15 MPG
Sierra Cab Chassis 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	14	16	15 MPG

2019 GMC Sierra 3500Hd: engines & MPG

The 2019 Sierra 3500Hd was EPA-rated in 22 versions (2.7L 4-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl), with combined economy from 15 to 21 MPG. Used 2019 models currently list for a median of $50,999 on VehiSales (27 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra C10 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	20	23	21 MPG
Sierra C10 2WD	2.7L 4-cyl	Automatic 8-spd	Regular	19	22	20 MPG
Sierra K10 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	19	22	20 MPG
Sierra C10 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	17	23	19 MPG
Sierra C10 XFE 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	17	24	19 MPG
Sierra K10 4WD	2.7L 4-cyl	Automatic 8-spd	Regular	18	20	19 MPG
Sierra C10 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C10 Cab Chassis 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	15	19	17 MPG
Sierra K10 4WD	6.2L 8-cyl	Automatic 10-spd	Premium	15	20	17 MPG
Sierra K10 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra K10 4WD AT4	6.2L 8-cyl	Automatic 10-spd	Premium	15	19	17 MPG
Sierra LTD K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra K10 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	15	21	17 MPG
Sierra C10 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra C10 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	16	21	17 MPG
Sierra LTD C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	22	17 MPG
Sierra K10 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra K10 4WD AT4	5.3L 8-cyl	Automatic 8-spd	Regular	15	20	17 MPG
Sierra C10 Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	19	16 MPG
Sierra K10 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	16 MPG
Sierra K10 Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	17	15 MPG
Sierra K10 Cab Chassis 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	14	17	15 MPG

2018 GMC Sierra 3500Hd: engines & MPG

The 2018 Sierra 3500Hd was EPA-rated in 12 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 20 MPG. Used 2018 models currently list for a median of $38,998 on VehiSales (31 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra C15 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	18	24	20 MPG
Sierra 15 Hybrid 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	18	24	20 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	17	22	19 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	23	19 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	22	18 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	22	18 MPG
Sierra 15 Hybrid 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	21	18 MPG
Sierra K15 Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	17 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	15	20	17 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 8-spd	Premium	15	20	17 MPG
Sierra C15 Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 8-spd	Premium	15	21	17 MPG

2017 GMC Sierra 3500Hd: engines & MPG

The 2017 Sierra 3500Hd was EPA-rated in 12 versions (5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl), with combined economy from 17 to 20 MPG. Used 2017 models currently list for a median of $39,499 on VehiSales (56 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	18	24	20 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	18	24	20 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	23	19 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	17	22	19 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	22	18 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	22	18 MPG
Sierra 15 Hybrid 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	21	18 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	15	20	17 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 8-spd	Regular	15	21	17 MPG
Sierra K15 Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	17 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 8-spd	Regular	15	20	17 MPG
Sierra C15 Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG

2016 GMC Sierra 3500Hd: engines & MPG

The 2016 Sierra 3500Hd was EPA-rated in 12 versions (5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl), with combined economy from 17 to 20 MPG. Used 2016 models currently list for a median of $38,387 on VehiSales (74 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	18	24	20 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	18	23	20 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	23	19 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	17	22	19 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	22	18 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	22	18 MPG
Sierra 15 Hybrid 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	16	21	18 MPG
Sierra K15 Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	17 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 8-spd	Regular	15	21	17 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 8-spd	Regular	15	21	17 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 8-spd	Regular	15	21	17 MPG
Sierra C15 Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG

2015 GMC Sierra 3500Hd: engines & MPG

The 2015 Sierra 3500Hd was EPA-rated in 10 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 20 MPG. Used 2015 models currently list for a median of $36,999 on VehiSales (59 for sale).

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra C15 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	18	24	20 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	23	19 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	17	22	19 MPG
Sierra K15 Cab Chassis 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	16	20	18 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	22	18 MPG
Sierra C15 Cab Chassis 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	16	21	18 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 8-spd	Regular	15	21	17 MPG
Sierra C15 Cab Chassis 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	20	17 MPG
Sierra K15 Cab Chassis 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	19	17 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 8-spd	Regular	15	21	17 MPG

2014 GMC Sierra 3500Hd: engines & MPG

The 2014 Sierra 3500Hd was EPA-rated in 6 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 20 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra C15 2WD	4.3L 6-cyl	Automatic 6-spd	Regular	18	23	20 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 6-spd	Regular	17	22	19 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	23	19 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	16	22	18 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 6-spd	Regular	14	20	17 MPG

2013 GMC Sierra 3500Hd: engines & MPG

The 2013 Sierra 3500Hd was EPA-rated in 12 versions (6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 21 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 4WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	20	23	21 MPG
Sierra 15 Hybrid 2WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	20	23	21 MPG
Sierra C15 XFE 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	22	18 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra K15 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 6-spd	Regular	12	18	14 MPG
Sierra K15 AWD	6.2L 8-cyl	Automatic 6-spd	Regular	12	18	14 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Regular	13	18	14 MPG

2012 GMC Sierra 3500Hd: engines & MPG

The 2012 Sierra 3500Hd was EPA-rated in 12 versions (6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 21 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 2WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	20	23	21 MPG
Sierra 15 Hybrid 4WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	20	23	21 MPG
Sierra C15 XFE 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	22	18 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra K15 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra K15 AWD	6.2L 8-cyl	Automatic 6-spd	Regular	12	18	14 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 6-spd	Regular	12	18	14 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Regular	13	18	14 MPG

2011 GMC Sierra 3500Hd: engines & MPG

The 2011 Sierra 3500Hd was EPA-rated in 12 versions (6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 21 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 2WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	20	23	21 MPG
Sierra 15 Hybrid 4WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	20	23	21 MPG
Sierra C15 XFE 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	22	18 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra C15 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra K15 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 6-spd	Regular	12	18	14 MPG
Sierra K15 AWD	6.2L 8-cyl	Automatic 6-spd	Regular	12	18	14 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Regular	12	18	14 MPG

2010 GMC Sierra 3500Hd: engines & MPG

The 2010 Sierra 3500Hd was EPA-rated in 12 versions (6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 22 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 2WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	21	22	22 MPG
Sierra 15 Hybrid 4WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	21	22	21 MPG
Sierra C15 XFE 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	22	18 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra K15 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Regular	13	19	15 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 6-spd	Regular	12	19	14 MPG
Sierra K15 AWD	6.2L 8-cyl	Automatic 6-spd	Regular	12	19	14 MPG

2009 GMC Sierra 3500Hd: engines & MPG

The 2009 Sierra 3500Hd was EPA-rated in 16 versions (6.0L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 21 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 2WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	21	22	21 MPG
Sierra 15 Hybrid 4WD	6.0L 8-cyl	Automatic (variable gear ratios)	Regular	20	20	20 MPG
Sierra C15 XFE 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	15	21	17 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	20	16 MPG
Sierra C15 2WD	6.0L 8-cyl	Automatic 6-spd	Regular	14	19	16 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra C15 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	20	16 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 6-spd	Regular	14	20	16 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra K15 4WD	6.0L 8-cyl	Automatic 6-spd	Regular	13	18	15 MPG
Sierra K15 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Regular	13	19	15 MPG
Sierra K15 AWD	6.2L 8-cyl	Automatic 6-spd	Regular	12	19	14 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 6-spd	Regular	12	19	14 MPG

2008 GMC Sierra 3500Hd: engines & MPG

The 2008 Sierra 3500Hd was EPA-rated in 10 versions (5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.0L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 17 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra C15 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra C15 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra K15 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra C15 2WD	6.0L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Premium	12	19	15 MPG
Sierra K15 AWD	6.2L 8-cyl	Automatic 6-spd	Premium	12	18	14 MPG
Sierra K15 4WD	6.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG

2007 GMC Sierra 3500Hd: engines & MPG

The 2007 Sierra 3500Hd was EPA-rated in 25 versions (5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.0L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 17 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra Classic 15 Hybrid 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	16	19	17 MPG
Sierra Classic 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	21	17 MPG
Sierra Classic 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	15	19	17 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra C15 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	19	17 MPG
Sierra C15 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra C15 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	20	16 MPG
Sierra Classic 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	20	16 MPG
Sierra Classic 15 Hybrid 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	15	18	16 MPG
Sierra K15 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra Classic 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra K15 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra Classic 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra Classic 1500 2WD	6.0L 8-cyl	Automatic 4-spd	Premium	13	17	15 MPG
Sierra Classic 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra Classic 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	19	15 MPG
Sierra Classic 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra C15 2WD	6.2L 8-cyl	Automatic 6-spd	Premium	12	19	15 MPG
Sierra K15 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra C15 2WD	6.0L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra K15 4WD	6.0L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra K15 4WD	6.2L 8-cyl	Automatic 6-spd	Premium	12	18	14 MPG
Sierra Classic 1500 AWD	6.0L 8-cyl	Automatic 4-spd	Premium	13	16	14 MPG
Sierra Classic 1500 4WD	6.0L 8-cyl	Automatic 4-spd	Premium	13	16	14 MPG

2006 GMC Sierra 3500Hd: engines & MPG

The 2006 Sierra 3500Hd was EPA-rated in 16 versions (4.8L 8-cyl, 4.3L 6-cyl, 5.3L 8-cyl, 6.0L 8-cyl), with combined economy from 13 to 17 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	15	19	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 15 Hybrid 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	16	19	17 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	20	16 MPG
Sierra 15 Hybrid 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	15	18	16 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 2WD	6.0L 8-cyl	Automatic 4-spd	Premium	13	18	15 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	6.0L 8-cyl	Automatic 4-spd	Premium	13	16	14 MPG
Sierra 1500 AWD	6.0L 8-cyl	Automatic 4-spd	Premium	12	16	13 MPG

2005 GMC Sierra 3500Hd: engines & MPG

The 2005 Sierra 3500Hd was EPA-rated in 17 versions (4.8L 8-cyl, 5.3L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl), with combined economy from 9 to 17 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	15	19	17 MPG
Sierra 15 Hybrid 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	16	19	17 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	20	16 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 15 Hybrid 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	15	18	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	20	16 MPG
Sierra 1500 2WD	6.0L 8-cyl	Automatic 4-spd	Premium	13	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 AWD	6.0L 8-cyl	Automatic 4-spd	Regular	12	15	13 MPG
Sierra 2500 Hd 2WD	6.0L 8-cyl	Automatic 4-spd	Regular	10	12	11 MPG
Sierra 2500 HD 2WD CNG	6.0L 8-cyl	Automatic 4-spd	Natural Gas	8	11	9 MPG
Sierra 2500 HD 4WD CNG	6.0L 8-cyl	Automatic 4-spd	Natural Gas	8	11	9 MPG

2004 GMC Sierra 3500Hd: engines & MPG

The 2004 Sierra 3500Hd was EPA-rated in 16 versions (5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl), with combined economy from 13 to 17 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 15 Hybrid 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	16	19	17 MPG
Sierra 15 Hybrid 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	15	17	16 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	15	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	17	14 MPG
Sierra 1500 2WD	6.0L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 AWD	6.0L 8-cyl	Automatic 4-spd	Regular	12	16	13 MPG

2003 GMC Sierra 3500Hd: engines & MPG

The 2003 Sierra 3500Hd was EPA-rated in 13 versions (4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl), with combined economy from 13 to 16 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	17	14 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra Denali 1500 AWD	6.0L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG

2002 GMC Sierra 3500Hd: engines & MPG

The 2002 Sierra 3500Hd was EPA-rated in 12 versions (4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl), with combined economy from 12 to 16 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	12	16	14 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra Denali 1500 AWD	6.0L 8-cyl	Automatic 4-spd	Regular	11	14	12 MPG

2001 GMC Sierra 3500Hd: engines & MPG

The 2001 Sierra 3500Hd was EPA-rated in 11 versions (4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 6.0L 8-cyl), with combined economy from 11 to 17 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	18	16 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	6.0L 8-cyl	Automatic 4-spd	Regular	10	13	11 MPG

2000 GMC Sierra 3500Hd: engines & MPG

The 2000 Sierra 3500Hd was EPA-rated in 12 versions (4.3L 6-cyl, 5.3L 8-cyl, 4.8L 8-cyl, 6.0L 8-cyl), with combined economy from 12 to 18 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	21	18 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	19	16 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	16	15 MPG
Sierra 2500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra 2500 2WD	6.0L 8-cyl	Automatic 4-spd	Regular	11	15	12 MPG

1999 GMC Sierra 3500Hd: engines & MPG

The 1999 Sierra 3500Hd was EPA-rated in 16 versions (4.3L 6-cyl, 4.8L 8-cyl, 5.3L 8-cyl, 5.0L 8-cyl, 5.7L 8-cyl, 6.0L 8-cyl), with combined economy from 12 to 17 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	21	17 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 2500 2WD	5.3L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.8L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	4.8L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	5.3L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	16	14 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 2500 2WD	6.0L 8-cyl	Automatic 4-spd	Regular	11	15	12 MPG

1998 GMC Sierra 3500Hd: engines & MPG

The 1998 Sierra 3500Hd was EPA-rated in 18 versions (4.3L 6-cyl, 5.0L 8-cyl, 6.5L 8-cyl, 5.7L 8-cyl), with combined economy from 13 to 18 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	16	21	18 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 2500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	13	17	15 MPG
Sierra 2500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	17	15 MPG
Sierra 2500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	13	17	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	18	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	18	14 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	13 MPG

1997 GMC Sierra 3500Hd: engines & MPG

The 1997 Sierra 3500Hd was EPA-rated in 18 versions (4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl, 6.5L 8-cyl), with combined economy from 13 to 18 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	21	18 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 2500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 2500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	19	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 2500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	17	15 MPG
Sierra 2500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	19	15 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	11	17	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	17	13 MPG

1996 GMC Sierra 3500Hd: engines & MPG

The 1996 Sierra 3500Hd was EPA-rated in 19 versions (4.3L 6-cyl, 6.5L 8-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 13 to 18 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	16	21	18 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 2500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	18	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	19	16 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	19	16 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	17	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 2500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	18	15 MPG
Sierra 2500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG

1995 GMC Sierra 3500Hd: engines & MPG

The 1995 Sierra 3500Hd was EPA-rated in 42 versions (6.5L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 12 to 19 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 2500 2WD	6.5L 8-cyl	Manual 5-spd	Diesel	17	22	19 MPG
Sierra 1500 2WD	6.5L 8-cyl	Manual 5-spd	Diesel	17	22	19 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
Sierra 2500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 2500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 2500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	16 MPG
Sierra 1500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	19	16 MPG
Sierra 2500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	18	16 MPG
Sierra 2500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	19	16 MPG
Sierra 2500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	6.5L 8-cyl	Manual 5-spd	Diesel	14	17	15 MPG
Sierra 2500 4WD	6.5L 8-cyl	Manual 5-spd	Diesel	14	17	15 MPG
Sierra 2500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	16	15 MPG
Sierra 2500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 2500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	13	17	14 MPG
Sierra 2500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	17	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	13	17	14 MPG
Sierra 2500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	13	17	14 MPG
Sierra 2500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 2500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG
Sierra 2500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
Sierra 2500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	12	16	13 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	17	13 MPG
Sierra 2500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	14	12 MPG
Sierra 2500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	12 MPG
Sierra 2500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	14	12 MPG

1994 GMC Sierra 3500Hd: engines & MPG

The 1994 Sierra 3500Hd was EPA-rated in 43 versions (6.5L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 12 to 19 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	6.5L 8-cyl	Manual 5-spd	Diesel	17	22	19 MPG
Sierra 2500 2WD	6.5L 8-cyl	Manual 5-spd	Diesel	17	22	19 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	16	21	18 MPG
Sierra 1500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	21	17 MPG
Sierra 2500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 1500 4WD	6.5L 8-cyl	Manual 5-spd	Diesel	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 1500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	18	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	18	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	20	16 MPG
Sierra 2500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	18	16 MPG
Sierra 2500 4WD	6.5L 8-cyl	Manual 5-spd	Diesel	15	19	16 MPG
Sierra 2500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	19	16 MPG
Sierra 2500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	16 MPG
Sierra 2500 2WD	6.5L 8-cyl	Automatic 4-spd	Diesel	15	20	16 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	17	15 MPG
Sierra 2500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 2500 4WD	6.5L 8-cyl	Automatic 4-spd	Diesel	14	17	15 MPG
Sierra 2500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	13	17	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	17	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	18	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
Sierra 2500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 2500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	17	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 2500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
Sierra 2500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
Sierra 2500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	17	13 MPG
Sierra 2500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	16	13 MPG
Sierra 2500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	14	12 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	14	12 MPG

1993 GMC Sierra 3500Hd: engines & MPG

The 1993 Sierra 3500Hd was EPA-rated in 41 versions (6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 12 to 18 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	16	21	18 MPG
Sierra 1500 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 4WD	6.2L 8-cyl	Manual 5-spd	Diesel	16	19	17 MPG
Sierra 2500 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 2500 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	6.2L 8-cyl	Manual 5-spd	Diesel	16	20	17 MPG
Sierra 2500 4WD	6.2L 8-cyl	Manual 5-spd	Diesel	16	19	17 MPG
Sierra 2500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 2500 2WD	6.2L 8-cyl	Manual 5-spd	Diesel	16	20	17 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	18	16 MPG
Sierra 2500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	20	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
Sierra 2500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	14	20	16 MPG
Sierra 2500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	17	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 2500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	17	15 MPG
Sierra 2500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	17	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	16	14 MPG
Sierra 2500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
Sierra 2500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 2500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	13	17	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 2500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	16	13 MPG
Sierra 2500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 2500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	16	13 MPG
Sierra 2500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	14	12 MPG
Sierra 2500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	14	12 MPG

1992 GMC Sierra 3500Hd: engines & MPG

The 1992 Sierra 3500Hd was EPA-rated in 39 versions (6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 12 to 20 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	6.2L 8-cyl	Manual 5-spd	Diesel	18	23	20 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Manual 5-spd	Diesel	17	22	19 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Manual 5-spd	Diesel	17	21	18 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	16	21	18 MPG
Sierra 1500 4WD	6.2L 8-cyl	Manual 5-spd	Diesel	16	20	18 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	22	18 MPG
Sierra 1500 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	16	22	18 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	18	16 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	16 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	16 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	17	15 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	13	19	15 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	15 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 5-spd	Regular	14	17	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	13	18	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	19	15 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 4-spd	Regular	12	16	14 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	16	13 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	16	13 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 4-spd	Regular	12	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	16	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	14	12 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	14	12 MPG

1991 GMC Sierra 3500Hd: engines & MPG

The 1991 Sierra 3500Hd was EPA-rated in 52 versions (6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 12 to 20 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
Sierra 1500 2WD	6.2L 8-cyl	Manual 5-spd	Diesel	18	23	20 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Manual 5-spd	Diesel	17	22	19 MPG
Sierra 2500 4WD	6.2L 8-cyl	Manual 5-spd	Diesel	17	21	18 MPG
Sierra 1500 2WD	6.2L 8-cyl	Manual 4-spd	Diesel	17	19	18 MPG
Sierra 1500 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	16	22	18 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	21	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 4-spd	Regular	16	19	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	21	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
Sierra 1500 4WD	6.2L 8-cyl	Manual 5-spd	Diesel	16	20	17 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 4-spd	Regular	15	18	17 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	20	17 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Manual 4-spd	Diesel	17	19	17 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 1500 4WD	6.2L 8-cyl	Manual 4-spd	Diesel	15	17	16 MPG
Sierra 1500 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	19	16 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	18	16 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Manual 4-spd	Diesel	15	17	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	19	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	18	16 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	16 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	17	16 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	15 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 4-spd	Regular	14	16	15 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	18	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 4-spd	Regular	14	16	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	18	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 4-spd	Regular	12	15	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 4-spd	Regular	12	14	13 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	12 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG

1990 GMC Sierra 3500Hd: engines & MPG

The 1990 Sierra 3500Hd was EPA-rated in 46 versions (4.3L 6-cyl, 6.2L 8-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 12 to 18 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
C2500 Sierra 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	22	18 MPG
Sierra 1500 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	16	22	18 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	16	22	18 MPG
Sierra 1500 2WD	6.2L 8-cyl	Manual 4-spd	Diesel	17	20	18 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 4-spd	Regular	16	19	17 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Manual 4-spd	Diesel	16	18	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 3-spd	Regular	16	19	17 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	18	16 MPG
Sierra 1500 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	16 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Manual 4-spd	Diesel	15	17	16 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	14	18	16 MPG
Sierra 1500 4WD	6.2L 8-cyl	Manual 4-spd	Diesel	15	17	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 3-spd	Regular	14	16	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	19	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Manual 5-spd	Regular	14	18	15 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	17	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 4-spd	Regular	14	16	15 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 4-spd	Regular	14	17	15 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Automatic 3-spd	Regular	15	16	15 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 4-spd	Regular	14	16	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Automatic 3-spd	Regular	14	15	14 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 3-spd	Regular	14	15	14 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	17	14 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	11	15	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 3-spd	Regular	12	14	13 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Automatic 3-spd	Regular	13	14	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	15	13 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	17	13 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Automatic 3-spd	Regular	11	13	12 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG

1989 GMC Sierra 3500Hd: engines & MPG

The 1989 Sierra 3500Hd was EPA-rated in 48 versions (6.2L 8-cyl, 4.3L 6-cyl, 5.0L 8-cyl, 5.7L 8-cyl), with combined economy from 12 to 19 MPG.

Version	Engine	Transmission	Fuel	City	Hwy	Combined
C2500 Sierra 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	16	23	19 MPG
Sierra 1500 2WD	6.2L 8-cyl	Automatic 4-spd	Diesel	17	23	19 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	22	18 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 5-spd	Regular	15	22	18 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 4WD	6.2L 8-cyl	Automatic 4-spd	Diesel	15	20	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Manual 4-spd	Regular	16	20	17 MPG
Sierra 1500 2WD	6.2L 8-cyl	Manual 4-spd	Diesel	16	18	17 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	20	17 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	19	16 MPG
C2500 Sierra 2WD	6.2L 8-cyl	Manual 4-spd	Diesel	16	17	16 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Automatic 4-spd	Regular	15	19	16 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 5-spd	Regular	15	19	16 MPG
Sierra 1500 4WD	6.2L 8-cyl	Manual 4-spd	Diesel	16	17	16 MPG
K2500 Sierra 4WD	6.2L 8-cyl	Manual 4-spd	Diesel	15	17	16 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Manual 4-spd	Regular	14	17	15 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	19	15 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Automatic 3-spd	Regular	14	16	15 MPG
K2500 Sierra 4WD	4.3L 6-cyl	Manual 4-spd	Regular	14	17	15 MPG
Sierra 1500 2WD	4.3L 6-cyl	Automatic 3-spd	Regular	15	16	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Manual 5-spd	Regular	13	19	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Automatic 3-spd	Regular	14	16	15 MPG
Sierra 1500 4WD	4.3L 6-cyl	Manual 4-spd	Regular	14	17	15 MPG
C2500 Sierra 2WD	4.3L 6-cyl	Automatic 3-spd	Regular	15	16	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	14	18	15 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	19	15 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Automatic 4-spd	Regular	13	18	15 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 4-spd	Regular	12	16	14 MPG
Sierra 1500 2WD	5.7L 8-cyl	Manual 5-spd	Regular	12	18	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	17	14 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 4-spd	Regular	12	15	14 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	13	16	14 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Automatic 4-spd	Regular	12	16	14 MPG
C2500 Sierra 2WD	5.7L 8-cyl	Manual 5-spd	Regular	11	17	13 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Automatic 4-spd	Regular	12	16	13 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Manual 5-spd	Regular	12	16	13 MPG
Sierra 1500 2WD	5.0L 8-cyl	Automatic 3-spd	Regular	13	14	13 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 5-spd	Regular	11	16	13 MPG
K2500 Sierra 4WD	5.0L 8-cyl	Automatic 3-spd	Regular	11	13	12 MPG
Sierra 1500 4WD	5.0L 8-cyl	Automatic 3-spd	Regular	11	13	12 MPG
Sierra 1500 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG
C2500 Sierra 2WD	5.0L 8-cyl	Automatic 3-spd	Regular	12	12	12 MPG
K2500 Sierra 4WD	5.7L 8-cyl	Manual 4-spd	Regular	11	13	12 MPG

Frequently asked questions

What MPG does a GMC Sierra 3500Hd get?

Depending on year and engine, EPA combined ratings for the Sierra 3500Hd range from 16 to 26 MPG. The most efficient rated version is the 2025 model year.

What powertrains does the 2026 GMC Sierra 3500Hd have?

The 2026 Sierra 3500Hd was EPA-rated with Electric, 3.0L 6-cyl, 2.7L 4-cyl, 5.3L 8-cyl, 6.2L 8-cyl powertrains — see the 2026 table above for each version's exact city/highway figures.

Does the GMC Sierra 3500Hd require premium gas?

Some versions do: EPA lists diesel and regular gasoline and premium gasoline and natural gas depending on year and engine — check your year's table above.

Is there a hybrid or electric Sierra 3500Hd?

Yes — the ratings above include hybrid and electric (shown in MPGe) versions; look for them in the per-year tables.

About this data: EPA ratings from the official U.S. DOE/EPA dataset (fueleconomy.gov), as of July 2026; refreshed monthly. Market prices and listing counts are live medians from VehiSales inventory, updated daily. How to cite: “VehiSales Research, GMC Sierra 3500Hd EPA Fuel Economy by Model Year” with a link to https://vehisales.com/research/fuel-economy/gmc/sierra-3500hd.