AutoSpecData

Mercedes-Benz SL-Class MPG & Fuel Economy

The 2027 Mercedes-Benz SL-Class gets up to 23 MPG combined (21 city / 27 highway) in EPA testing.

Latest model year (2027):

The Mercedes-Benz SL-Class gets up to 16 MPG combined (14 city / 21 highway) in the Auto 9-spd, 8 cyl, 4.0 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceEV Range

Mercedes-Benz SL-Class MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2027Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2027Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline132016
2027Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2026Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline192722
2026Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline132016
2026Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2026Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2025Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline192722
2025Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline132116
2025Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline132116
2025Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline162218
2024Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline202722
2024Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2024Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2023Auto 9-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline212723
2023Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142216
2023Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline132116
2022Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2022Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2020Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202822
2020Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172520
2019Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline152318
2019Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202823
2019Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172520
2018Auto 7-spd, 12 cyl, 6.0 L12 6.0LPremium Gasoline132216
2018Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162519
2018Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202823
2018Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172520
2017Auto 7-spd, 12 cyl, 6.0 L12 6.0LPremium Gasoline132216
2017Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162519
2017Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202823
2017Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline172520
2016Auto 7-spd, 12 cyl, 6.0 L12 6.0LPremium Gasoline142117
2016Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202723
2016Auto 7-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline162419
2016Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162519
2015Auto 7-spd, 12 cyl, 6.0 L12 6.0LPremium Gasoline142117
2015Auto 7-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202723
2015Auto 7-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline182420
2015Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline162519

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Mercedes-Benz SL-Class MPG FAQ

What is the MPG of the Mercedes-Benz SL-Class?

The Mercedes-Benz SL-Class gets up to 23 MPG combined (21 city / 27 highway) in the 2027 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Mercedes-Benz SL-Class trim has the best fuel economy?

The Auto 9-spd, 4 cyl, 2.0 L trim offers the best combined fuel economy at 23 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

All Mercedes-Benz SL-Class specifications

More Mercedes-Benz models

View all Mercedes-Benz models →

Browse other makes

Keep exploring

Free tools people use next

Every tool below is free, needs no account and runs on the same verified EPA and NHTSA data behind this page.

Most usedDecode any VINEngine, drivetrain, GVWR class and towing capacity from the 17-character VIN.Open toolVisualCompare two cars by sizeOverlay length, width, height and wheelbase to scale before you buy.Open toolOwnershipBuild a maintenance scheduleMileage-by-mileage service intervals with PDF and calendar export.Open toolRankingsBest MPG, rankedThe most efficient SUVs, trucks, hybrids and EVs by EPA combined MPG.Open tool