2021 · Midsize & Large SUV · Gas
2021 Mercedes-Benz G-Class MPG & fuel economy
The 2021 Mercedes-Benz G-Class is a midsize or large SUV offered in 2 EPA-rated configurations. The most efficient version returns 18 MPG combined (17 city / 19 highway) on premium gasoline. Across the lineup, combined ratings range from 14 to 18 MPG. That's up 4 MPG from the 2020 model. Among 65 midsize & large SUVs rated for 2021, it ranks 50th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,292 a year to fuel.
What will it cost you?
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Fuel average
The 2021 Mercedes-Benz G-Class's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 7.2 km/L in the city and 8.1 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 17 | 7.2 | 13.8 |
| Highway | 19 | 8.1 | 12.4 |
| Combined | 18 | 7.7 | 13.1 |
How it ranks among 2021 Midsize & Large SUVs
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
G-Class MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| 4WD · 4.0L 8-cyl turbo · 9-speed automatic G550 |
Gas | 17 MPG | 19 MPG | 18 MPG | — | $3,292 |
| 4WD · 4.0L 8-cyl turbo · 9-speed automatic AMG G63 |
Gas | 13 MPG | 16 MPG | 14 MPG | — | $4,232 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 4.0L 8-cyl turbo
- Transmission
- 9-speed automatic
- Drivetrain
- 4WD
- Tailpipe CO₂
- 494 g/mi
- EPA fuel economy score
- 3/10
- EPA greenhouse gas score
- 3/10
2021 Mercedes-Benz G-Class vs. rivals
Compare the 2021 G-Class
With any other car from any year, including other G-Class model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2021 Mercedes-Benz G-Class?
Up to 18 MPG combined (17 city / 19 highway); ratings range from 14 to 18 MPG depending on configuration.
What fuel does the 2021 Mercedes-Benz G-Class use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 2021 Mercedes-Benz G-Class?
The 2021 Mercedes-Benz G-Class's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 7.2 km/L in the city and 8.1 km/L on the highway.
How much does it cost to fuel the 2021 Mercedes-Benz G-Class per year?
About $3,292 at 15,000 miles a year with $3.95/gal premium gas, or $21.94 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.