2018 · Midsize & Large SUV · Gas
2018 Mercedes-Benz G-Class MPG & fuel economy
The 2018 Mercedes-Benz G-Class is a midsize or large SUV offered in 4 EPA-rated configurations. The most efficient version returns 13 MPG combined (12 city / 15 highway) on premium gasoline. Across the lineup, combined ratings range from 11 to 13 MPG. Efficiency is unchanged from the 2017 model. Among 42 midsize & large SUVs rated for 2018, it ranks 42nd for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $4,558 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2018 Mercedes-Benz G-Class's fuel average is 5.5 km/L (18.1 L/100 km), or 13 MPG combined: 5.1 km/L in the city and 6.4 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 12 | 5.1 | 19.6 |
| Highway | 15 | 6.4 | 15.7 |
| Combined | 13 | 5.5 | 18.1 |
How it ranks among 2018 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 →4 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| 4WD · 5.5L 8-cyl turbo · 7-speed automatic AMG G63 |
Gas | 12 MPG | 15 MPG | 13 MPG | — | $4,558 |
| 4WD · 4.0L 8-cyl turbo · 7-speed automatic G550 |
Gas | 13 MPG | 14 MPG | 13 MPG | — | $4,558 |
| 4WD · 6.0L 12-cyl turbo · 7-speed automatic AMG G65 |
Gas | 11 MPG | 13 MPG | 12 MPG | — | $4,938 |
| 4WD · 4.0L 8-cyl turbo · 7-speed automatic G550 4x4 |
Gas | 11 MPG | 11 MPG | 11 MPG | — | $5,386 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 5.5L 8-cyl turbo
- Transmission
- 7-speed automatic
- Drivetrain
- 4WD
- Tailpipe CO₂
- 674 g/mi
- EPA fuel economy score
- 1/10
- EPA greenhouse gas score
- 1/10
2018 Mercedes-Benz G-Class vs. rivals
Compare the 2018 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 2018 Mercedes-Benz G-Class?
Up to 13 MPG combined (12 city / 15 highway); ratings range from 11 to 13 MPG depending on configuration.
What fuel does the 2018 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 2018 Mercedes-Benz G-Class?
The 2018 Mercedes-Benz G-Class's fuel average is 5.5 km/L (18.1 L/100 km), or 13 MPG combined: 5.1 km/L in the city and 6.4 km/L on the highway.
How much does it cost to fuel the 2018 Mercedes-Benz G-Class per year?
About $4,558 at 15,000 miles a year with $3.95/gal premium gas, or $30.38 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.