GMC Sierra K15 MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated GMC Sierra K15 model year from 2007 to 2019 — each engine and transmission with its official city, highway and combined figures. Over these years the Sierra K15 has been offered with 5.3L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl, 4.8L 8-cyl, 6.0L 8-cyl engines; the most efficient version is the 2018 (up to 19 MPG combined). Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.
GMC Sierra K15 fuel economy by year
| Year | Combined | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2019 | 17 MPG | 5.3L 8-cyl | — | — |
| 2018 | 17–19 MPG | 4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl | — | — |
| 2017 | 17–19 MPG | 4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl | — | — |
| 2016 | 17–19 MPG | 4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl | — | — |
| 2015 | 17–19 MPG | 4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl | — | — |
| 2014 | 17–19 MPG | 4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl | — | — |
| 2013 | 14–17 MPG | 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl | — | — |
| 2012 | 14–17 MPG | 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl | — | — |
| 2011 | 14–17 MPG | 5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl | — | — |
| 2010 | 14–17 MPG | 5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl | — | — |
| 2009 | 14–16 MPG | 5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl, 6.2L 8-cyl | — | — |
| 2008 | 14–16 MPG | 5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl, 6.2L 8-cyl | — | — |
| 2007 | 14–16 MPG | 5.3L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl, 4.8L 8-cyl, 6.2L 8-cyl | — | — |
2019 GMC Sierra K15: engines & MPG
The 2019 Sierra K15 was EPA-rated in 1 version (5.3L 8-cyl), with combined economy of 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sierra LTD K15 4WD | 5.3L 8-cyl | Automatic 6-spd | Regular | 15 | 21 | 17 MPG |
2018 GMC Sierra K15: engines & MPG
The 2018 Sierra K15 was EPA-rated in 5 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| 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 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 |
2017 GMC Sierra K15: engines & MPG
The 2017 Sierra K15 was EPA-rated in 5 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| 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 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 | Regular | 15 | 20 | 17 MPG |
2016 GMC Sierra K15: engines & MPG
The 2016 Sierra K15 was EPA-rated in 5 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| 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 K15 4WD | 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 | 5.3L 8-cyl | Automatic 8-spd | Regular | 15 | 21 | 17 MPG |
2015 GMC Sierra K15: engines & MPG
The 2015 Sierra K15 was EPA-rated in 5 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| 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 K15 4WD | 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 |
2014 GMC Sierra K15: engines & MPG
The 2014 Sierra K15 was EPA-rated in 3 versions (4.3L 6-cyl, 5.3L 8-cyl, 6.2L 8-cyl), with combined economy from 17 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| 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 K15 4WD | 6.2L 8-cyl | Automatic 6-spd | Regular | 14 | 20 | 17 MPG |
2013 GMC Sierra K15: engines & MPG
The 2013 Sierra K15 was EPA-rated in 5 versions (5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sierra K15 4WD | 5.3L 8-cyl | Automatic 6-spd | Regular | 15 | 21 | 17 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 |
2012 GMC Sierra K15: engines & MPG
The 2012 Sierra K15 was EPA-rated in 5 versions (5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sierra K15 4WD | 5.3L 8-cyl | Automatic 6-spd | Regular | 15 | 21 | 17 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 |
2011 GMC Sierra K15: engines & MPG
The 2011 Sierra K15 was EPA-rated in 5 versions (5.3L 8-cyl, 4.3L 6-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sierra K15 4WD | 5.3L 8-cyl | Automatic 6-spd | Regular | 15 | 21 | 17 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 |
2010 GMC Sierra K15: engines & MPG
The 2010 Sierra K15 was EPA-rated in 5 versions (5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.2L 8-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sierra K15 4WD | 5.3L 8-cyl | Automatic 6-spd | Regular | 15 | 21 | 17 MPG |
| Sierra K15 4WD | 4.8L 8-cyl | Automatic 4-spd | Regular | 13 | 18 | 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 K15: engines & MPG
The 2009 Sierra K15 was EPA-rated in 7 versions (5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sierra K15 4WD | 5.3L 8-cyl | Automatic 6-spd | Regular | 14 | 20 | 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 | 15 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 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 K15: engines & MPG
The 2008 Sierra K15 was EPA-rated in 5 versions (5.3L 8-cyl, 4.8L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| 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 K15 4WD | 6.0L 8-cyl | Automatic 4-spd | Regular | 13 | 17 | 14 MPG |
| Sierra K15 AWD | 6.2L 8-cyl | Automatic 6-spd | Premium | 12 | 18 | 14 MPG |
2007 GMC Sierra K15: engines & MPG
The 2007 Sierra K15 was EPA-rated in 6 versions (5.3L 8-cyl, 4.3L 6-cyl, 6.0L 8-cyl, 4.8L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sierra K15 4WD | 5.3L 8-cyl | Automatic 4-spd | Regular | 14 | 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 | 19 | 16 MPG |
| Sierra K15 4WD | 6.0L 8-cyl | Automatic 4-spd | Regular | 13 | 17 | 15 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 | Premium | 12 | 18 | 14 MPG |
Frequently asked questions
What MPG does a GMC Sierra K15 get?
Depending on year and engine, EPA combined ratings for the Sierra K15 range from 16 to 19 MPG. The most efficient rated version is the 2018 model year.
What engines does the 2019 GMC Sierra K15 have?
The 2019 Sierra K15 was EPA-rated with 5.3L 8-cyl engines — see the 2019 table above for each version's exact city/highway figures.
Does the GMC Sierra K15 require premium gas?
Some versions do: EPA lists regular gasoline and premium gasoline depending on year and engine — check your year's table above.
https://vehisales.com/research/fuel-economy/gmc/sierra-k15.
Fuel economy of other models
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See also: GMC Sierra K15 hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].