2018 Mercedes-Benz G-Class
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2018 Mercedes-Benz G-Class is sold in the U.S. with gasoline power. The EPA lists 4 configurations for this model year, with combined economy from 11 to 13 MPG and an estimated annual fuel cost of $6,150 to $7,250 at 15,000 miles.
Key numbers
| Model year | 2018 |
|---|---|
| Vehicle class | Standard Sport Utility Vehicle 4WD |
| Fuel type(s) | Gasoline |
| Combined economy | 11-13 MPG |
| Best / worst combined | 13 / 11 MPG |
| Annual fuel cost | $6,150-$7,250 |
| Tailpipe CO₂ | 660-829 g/mi |
| EPA smog rating | 3-3 / 10 |
What it costs to fuel
Across its configurations, the 2018 G-Class costs about $6,150 to $7,250 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $6,550. Over five years that is about $32,750 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, this G-Class configuration spends about $19,250 more on fuel over five years.
For context, the average combined economy of standard sport utility vehicle 4wd in this dataset is about 23 MPG. The G-Class sits roughly 11 MPG below that mark at its midpoint, making it thirstier than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| AMG G63 | 5.5L 8-cyl turbo | 4-Wheel | Automatic | Gasoline | 13 MPG | $6,150 |
| G550 | 4.0L 8-cyl turbo | 4-Wheel | Automatic | Gasoline | 13 MPG | $6,150 |
| AMG G65 | 6.0L 12-cyl turbo | 4-Wheel | Automatic | Gasoline | 12 MPG | $6,650 |
| G550 4x4 | 4.0L 8-cyl turbo | 4-Wheel | Automatic | Gasoline | 11 MPG | $7,250 |
Emissions, safety and size
The 2018 G-Class records tailpipe CO₂ of 660-829 g/mi, an EPA smog rating of 3-3 out of 10. The EPA classifies it as standard sport utility vehicle 4wd.
Compare this car
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.