Mercedes-Benz SL-Class MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated Mercedes-Benz SL-Class model year from 1994 to 2026 — each engine and transmission with its official city, highway and combined figures. Over these years the SL-Class has been offered with 4.0L 8-cyl, 3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl, 6.2L 8-cyl engines; the most efficient version is the 2019 (up to 23 MPG combined). Every rated gas version calls for premium gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.
Mercedes-Benz SL-Class fuel economy by year
| Year | Combined | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2026 | 16 MPG | 4.0L 8-cyl | $158,145 | 32 listings |
| 2020 | 20–22 MPG | 3.0L 6-cyl, 4.7L 8-cyl | $61,750 | 14 listings |
| 2019 | 20–23 MPG | 3.0L 6-cyl, 4.7L 8-cyl | $65,000 | 5 listings |
| 2018 | 20–23 MPG | 3.0L 6-cyl, 4.7L 8-cyl | $37,895 | 13 listings |
| 2017 | 20–23 MPG | 3.0L 6-cyl, 4.7L 8-cyl | $42,789 | 10 listings |
| 2016 | 19–23 MPG | 3.0L 6-cyl, 4.7L 8-cyl | $46,495 | 25 listings |
| 2015 | 17–23 MPG | 3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl | $40,998 | 9 listings |
| 2014 | 17–20 MPG | 4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl | — | — |
| 2013 | 17–20 MPG | 4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl | — | — |
| 2012 | 14–17 MPG | 5.5L 8-cyl, 6.2L 8-cyl | — | — |
| 2011 | 14–17 MPG | 5.5L 8-cyl, 6.0L 12-cyl, 6.3L 8-cyl | — | — |
| 2009 | 14–16 MPG | 5.5L 8-cyl, 6.2L 8-cyl, 6.0L 12-cyl, 5.5L 12-cyl | — | — |
| 2008 | 14–16 MPG | 5.5L 8-cyl, 6.0L 12-cyl, 5.5L 12-cyl, 5.4L 8-cyl | — | — |
| 2007 | 14–16 MPG | 5.5L 8-cyl, 5.5L 12-cyl, 5.4L 8-cyl, 6.0L 12-cyl | — | — |
| 2006 | 14–17 MPG | 5.0L 8-cyl, 5.4L 8-cyl, 6.0L 12-cyl, 5.5L 12-cyl | — | — |
| 2005 | 13–17 MPG | 5.0L 8-cyl, 5.4L 8-cyl, 5.5L 12-cyl, 6.0L 12-cyl | — | — |
| 2004 | 14–17 MPG | 5.0L 8-cyl, 5.4L 8-cyl, 5.5L 12-cyl | — | — |
| 2003 | 14–16 MPG | 5.0L 8-cyl, 5.5L 8-cyl | — | — |
| 2002 | 14–17 MPG | 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 2001 | 14–17 MPG | 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 2000 | 14–17 MPG | 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 1999 | 14–17 MPG | 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 1998 | 14–17 MPG | 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 1997 | 14–18 MPG | 3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 1996 | 14–18 MPG | 3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 1995 | 13–18 MPG | 3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl | — | — |
| 1994 | 13–18 MPG | 3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl | — | — |
2026 Mercedes-Benz SL-Class: engines & MPG
The 2026 SL-Class was EPA-rated in 1 version (4.0L 8-cyl), with combined economy of 16 MPG. Used 2026 models currently list for a median of $158,145 on VehiSales (32 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL680 Maybach | 4.0L 8-cyl | Automatic 9-spd | Premium | 13 | 20 | 16 MPG |
2020 Mercedes-Benz SL-Class: engines & MPG
The 2020 SL-Class was EPA-rated in 2 versions (3.0L 6-cyl, 4.7L 8-cyl), with combined economy from 20 to 22 MPG. Used 2020 models currently list for a median of $61,750 on VehiSales (14 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL450 | 3.0L 6-cyl | Automatic 9-spd | Premium | 20 | 28 | 22 MPG |
| SL550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 17 | 25 | 20 MPG |
2019 Mercedes-Benz SL-Class: engines & MPG
The 2019 SL-Class was EPA-rated in 2 versions (3.0L 6-cyl, 4.7L 8-cyl), with combined economy from 20 to 23 MPG. Used 2019 models currently list for a median of $65,000 on VehiSales (5 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL450 | 3.0L 6-cyl | Automatic 9-spd | Premium | 20 | 28 | 23 MPG |
| SL550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 17 | 25 | 20 MPG |
2018 Mercedes-Benz SL-Class: engines & MPG
The 2018 SL-Class was EPA-rated in 2 versions (3.0L 6-cyl, 4.7L 8-cyl), with combined economy from 20 to 23 MPG. Used 2018 models currently list for a median of $37,895 on VehiSales (13 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL450 | 3.0L 6-cyl | Automatic 9-spd | Premium | 20 | 28 | 23 MPG |
| SL550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 17 | 25 | 20 MPG |
2017 Mercedes-Benz SL-Class: engines & MPG
The 2017 SL-Class was EPA-rated in 2 versions (3.0L 6-cyl, 4.7L 8-cyl), with combined economy from 20 to 23 MPG. Used 2017 models currently list for a median of $42,789 on VehiSales (10 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL450 | 3.0L 6-cyl | Automatic 9-spd | Premium | 20 | 28 | 23 MPG |
| SL550 | 4.7L 8-cyl | Automatic 9-spd | Premium | 17 | 25 | 20 MPG |
2016 Mercedes-Benz SL-Class: engines & MPG
The 2016 SL-Class was EPA-rated in 2 versions (3.0L 6-cyl, 4.7L 8-cyl), with combined economy from 19 to 23 MPG. Used 2016 models currently list for a median of $46,495 on VehiSales (25 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL400 | 3.0L 6-cyl | Automatic 7-spd | Premium | 20 | 27 | 23 MPG |
| SL550 | 4.7L 8-cyl | Automatic 7-spd | Premium | 16 | 24 | 19 MPG |
2015 Mercedes-Benz SL-Class: engines & MPG
The 2015 SL-Class was EPA-rated in 4 versions (3.0L 6-cyl, 4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl), with combined economy from 17 to 23 MPG. Used 2015 models currently list for a median of $40,998 on VehiSales (9 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL400 | 3.0L 6-cyl | Automatic 7-spd | Premium | 20 | 27 | 23 MPG |
| SL550 | 4.7L 8-cyl | Automatic 7-spd | Premium | 18 | 24 | 20 MPG |
| SL63 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic 7-spd | Premium | 14 | 21 | 17 MPG |
2014 Mercedes-Benz SL-Class: engines & MPG
The 2014 SL-Class was EPA-rated in 3 versions (4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl), with combined economy from 17 to 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL550 | 4.7L 8-cyl | Automatic 7-spd | Premium | 18 | 24 | 20 MPG |
| SL63 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic 7-spd | Premium | 14 | 21 | 17 MPG |
2013 Mercedes-Benz SL-Class: engines & MPG
The 2013 SL-Class was EPA-rated in 3 versions (4.7L 8-cyl, 5.5L 8-cyl, 6.0L 12-cyl), with combined economy from 17 to 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL550 | 4.7L 8-cyl | Automatic 7-spd | Premium | 17 | 25 | 20 MPG |
| SL63 AMG | 5.5L 8-cyl | Automatic 7-spd | Premium | 16 | 25 | 19 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic 7-spd | Premium | 14 | 21 | 17 MPG |
2012 Mercedes-Benz SL-Class: engines & MPG
The 2012 SL-Class was EPA-rated in 2 versions (5.5L 8-cyl, 6.2L 8-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 22 | 17 MPG |
| SL63 AMG | 6.2L 8-cyl | Automatic 7-spd | Premium | 12 | 19 | 14 MPG |
2011 Mercedes-Benz SL-Class: engines & MPG
The 2011 SL-Class was EPA-rated in 3 versions (5.5L 8-cyl, 6.0L 12-cyl, 6.3L 8-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 22 | 17 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 18 | 14 MPG |
| SL63 AMG | 6.3L 8-cyl | Automatic 7-spd | Premium | 12 | 19 | 14 MPG |
2009 Mercedes-Benz SL-Class: engines & MPG
The 2009 SL-Class was EPA-rated in 4 versions (5.5L 8-cyl, 6.2L 8-cyl, 6.0L 12-cyl, 5.5L 12-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 13 | 21 | 16 MPG |
| SL63 AMG | 6.2L 8-cyl | Automatic (S7) | Premium | 12 | 19 | 14 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic (S5) | Premium | 11 | 18 | 14 MPG |
| SL600 | 5.5L 12-cyl | Automatic 5-spd | Premium | 11 | 18 | 14 MPG |
2008 Mercedes-Benz SL-Class: engines & MPG
The 2008 SL-Class was EPA-rated in 4 versions (5.5L 8-cyl, 6.0L 12-cyl, 5.5L 12-cyl, 5.4L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 14 | 21 | 16 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic (S5) | Premium | 11 | 18 | 14 MPG |
| SL600 | 5.5L 12-cyl | Automatic 5-spd | Premium | 11 | 18 | 14 MPG |
| SL55 AMG | 5.4L 8-cyl | Automatic (S5) | Premium | 12 | 17 | 14 MPG |
2007 Mercedes-Benz SL-Class: engines & MPG
The 2007 SL-Class was EPA-rated in 4 versions (5.5L 8-cyl, 5.5L 12-cyl, 5.4L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL550 | 5.5L 8-cyl | Automatic 7-spd | Premium | 13 | 21 | 16 MPG |
| SL600 | 5.5L 12-cyl | Automatic 5-spd | Premium | 11 | 18 | 14 MPG |
| SL55 AMG | 5.4L 8-cyl | Automatic (S5) | Premium | 12 | 17 | 14 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic (S5) | Premium | 11 | 18 | 14 MPG |
2006 Mercedes-Benz SL-Class: engines & MPG
The 2006 SL-Class was EPA-rated in 4 versions (5.0L 8-cyl, 5.4L 8-cyl, 6.0L 12-cyl, 5.5L 12-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 7-spd | Premium | 14 | 22 | 17 MPG |
| SL55 AMG | 5.4L 8-cyl | Automatic (S5) | Premium | 12 | 19 | 15 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic (S5) | Premium | 12 | 18 | 14 MPG |
| SL600 | 5.5L 12-cyl | Automatic 5-spd | Premium | 11 | 18 | 14 MPG |
2005 Mercedes-Benz SL-Class: engines & MPG
The 2005 SL-Class was EPA-rated in 4 versions (5.0L 8-cyl, 5.4L 8-cyl, 5.5L 12-cyl, 6.0L 12-cyl), with combined economy from 13 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 7-spd | Premium | 14 | 21 | 17 MPG |
| SL55 AMG | 5.4L 8-cyl | Automatic (S5) | Premium | 12 | 18 | 14 MPG |
| SL600 | 5.5L 12-cyl | Automatic 5-spd | Premium | 11 | 18 | 14 MPG |
| SL65 AMG | 6.0L 12-cyl | Automatic (S5) | Premium | 11 | 18 | 13 MPG |
2004 Mercedes-Benz SL-Class: engines & MPG
The 2004 SL-Class was EPA-rated in 3 versions (5.0L 8-cyl, 5.4L 8-cyl, 5.5L 12-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 7-spd | Premium | 14 | 21 | 17 MPG |
| SL55 AMG | 5.4L 8-cyl | Automatic (S5) | Premium | 13 | 19 | 15 MPG |
| SL600 | 5.5L 12-cyl | Automatic 5-spd | Premium | 12 | 17 | 14 MPG |
2003 Mercedes-Benz SL-Class: engines & MPG
The 2003 SL-Class was EPA-rated in 2 versions (5.0L 8-cyl, 5.5L 8-cyl), with combined economy from 14 to 16 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 14 | 20 | 16 MPG |
| SL55 AMG | 5.5L 8-cyl | Automatic 5-spd | Premium | 12 | 18 | 14 MPG |
2002 Mercedes-Benz SL-Class: engines & MPG
The 2002 SL-Class was EPA-rated in 2 versions (5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 15 | 22 | 17 MPG |
| SL600 | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 17 | 14 MPG |
2001 Mercedes-Benz SL-Class: engines & MPG
The 2001 SL-Class was EPA-rated in 2 versions (5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 14 | 21 | 17 MPG |
| SL600 | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 17 | 14 MPG |
2000 Mercedes-Benz SL-Class: engines & MPG
The 2000 SL-Class was EPA-rated in 2 versions (5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 14 | 21 | 17 MPG |
| SL600 | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 18 | 14 MPG |
1999 Mercedes-Benz SL-Class: engines & MPG
The 1999 SL-Class was EPA-rated in 2 versions (5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 14 | 21 | 17 MPG |
| SL600 | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 17 | 14 MPG |
1998 Mercedes-Benz SL-Class: engines & MPG
The 1998 SL-Class was EPA-rated in 2 versions (5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 17 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 14 | 21 | 17 MPG |
| SL600 | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 18 | 14 MPG |
1997 Mercedes-Benz SL-Class: engines & MPG
The 1997 SL-Class was EPA-rated in 3 versions (3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 18 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL320 | 3.2L 6-cyl | Automatic 5-spd | Premium | 16 | 22 | 18 MPG |
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 14 | 21 | 16 MPG |
| SL600 | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 19 | 14 MPG |
1996 Mercedes-Benz SL-Class: engines & MPG
The 1996 SL-Class was EPA-rated in 3 versions (3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 14 to 18 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL320 | 3.2L 6-cyl | Automatic 5-spd | Premium | 15 | 22 | 18 MPG |
| SL500 | 5.0L 8-cyl | Automatic 5-spd | Premium | 15 | 22 | 17 MPG |
| SL600 | 6.0L 12-cyl | Automatic 5-spd | Premium | 12 | 19 | 14 MPG |
1995 Mercedes-Benz SL-Class: engines & MPG
The 1995 SL-Class was EPA-rated in 3 versions (3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 13 to 18 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL320 | 3.2L 6-cyl | Automatic 5-spd | Premium | 15 | 22 | 18 MPG |
| SL500 | 5.0L 8-cyl | Automatic 4-spd | Premium | 15 | 20 | 16 MPG |
| SL600 | 6.0L 12-cyl | Automatic 4-spd | Premium | 12 | 16 | 13 MPG |
1994 Mercedes-Benz SL-Class: engines & MPG
The 1994 SL-Class was EPA-rated in 3 versions (3.2L 6-cyl, 5.0L 8-cyl, 6.0L 12-cyl), with combined economy from 13 to 18 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| SL320 | 3.2L 6-cyl | Automatic 4-spd | Premium | 15 | 22 | 18 MPG |
| SL500 | 5.0L 8-cyl | Automatic 4-spd | Premium | 14 | 19 | 16 MPG |
| SL600 | 6.0L 12-cyl | Automatic 4-spd | Premium | 11 | 16 | 13 MPG |
Frequently asked questions
What MPG does a Mercedes-Benz SL-Class get?
Depending on year and engine, EPA combined ratings for the SL-Class range from 16 to 23 MPG. The most efficient rated version is the 2019 model year.
What engines does the 2026 Mercedes-Benz SL-Class have?
The 2026 SL-Class was EPA-rated with 4.0L 8-cyl engines — see the 2026 table above for each version's exact city/highway figures.
Does the Mercedes-Benz SL-Class require premium gas?
Yes — every EPA-rated gas SL-Class version specifies premium gasoline.
https://vehisales.com/research/fuel-economy/mercedes-benz/sl-class.
Fuel economy of other models
Mercedes-Benz GLE-Class MPG by year · Mercedes-Benz C-Class MPG by year · Mercedes-Benz GLC-Class MPG by year · Mercedes-Benz E-Class MPG by year
See also: Mercedes-Benz SL-Class hub — live listings, prices & reliability · Used Mercedes-Benz SL-Class prices by year · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].