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Mercedes-Benz GLS-Class Annual Fuel Cost

Running a 2026 Mercedes-Benz GLS-Class costs about $3,600 per year in fuel, based on 15,000 miles of driving at average U.S. fuel prices.

Latest model year (2026):

The Mercedes-Benz GLS-Class costs an estimated $3,600/year in fuel (428 g CO₂/mi).

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

Mercedes-Benz GLS-Class Fuel Cost — All Years

YearTrimEngineFuelMPG Comb.Annual CostCO₂ (g/mi)GHG Score
2026Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline21$3,6004284
2026Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505393
2026Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline15$5,0505852
2026Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline17$4,4505383
2025Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline21$3,6004284
2025Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline15$5,0505782
2025Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505483
2025Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline15$5,0505882
2024Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline21$3,6004284
2024Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505543
2024Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505643
2024Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505743
2023Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline20$3,8004334
2023Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505603
2023Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline17$4,4505283
2023Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline18$4,2004994
2022Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline20$3,8004334
2022Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline15$5,0505712
2022Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline18$4,2004983
2022Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline17$4,4505333
2021Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline21$3,6004144
2021Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline18$4,2004913
2021Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505592
2021Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline16$4,7505392
2020Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline21$3,6004294
2020Auto 9-spd, 8 cyl, 4.0 L8 4.0LPremium Gasoline18$4,2004873
2019Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline15$5,0506012
2019Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline18$4,2004883
2019Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline16$4,7505722
2018Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline15$5,0505912
2018Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline19$4,0004773
2018Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline16$4,7505562
2017Auto 7-spd, 8 cyl, 5.5 L8 5.5LPremium Gasoline14$5,4506151
2017Auto 9-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline19$4,0004774
2017Auto 9-spd, 8 cyl, 4.7 L8 4.7LPremium Gasoline16$4,7505622

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 GLS-Class Fuel Cost FAQ

How much does it cost to fuel the Mercedes-Benz GLS-Class?

The estimated annual fuel cost for the Mercedes-Benz GLS-Class is $3,600 per year, based on 15,000 miles of driving and average fuel prices. Costs vary by trim and engine.

How much CO₂ does the Mercedes-Benz GLS-Class produce?

The Mercedes-Benz GLS-Class produces approximately 428 grams of CO₂ per mile. Lower numbers mean fewer emissions. See the table for per-trim details.

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