2018 head-to-head · Midsize & Large SUV
2018 Lexus GX vs Mercedes-Benz G-Class
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
4WD · 4.6L 8-cyl · 6-speed automatic · 16 MPG
The 2018 Lexus GX is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,703 a year to fuel (16 MPG), versus $4,558 for the 2018 Mercedes-Benz G-Class (13 MPG). That's roughly $855 a year, or about $4,273 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Lexus GX
- Mercedes-Benz G-Class
Side by side
| Lexus GX | Mercedes-Benz G-Class | |
|---|---|---|
| $3,703 | Your annual fuel cost | $4,558 |
| 16 MPG | Combined efficiency | 13 MPG |
| 15 MPG | City | 12 MPG |
| 18 MPG | Highway | 15 MPG |
| 548 g/mi | Tailpipe CO₂ (g/mi) | 674 g/mi |
| 2/10 | EPA fuel economy score | 1/10 |
| 2/10 | EPA greenhouse gas score | 1/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.6L 8-cyl | Engine / motor | 5.5L 8-cyl turbo |
| 6-speed automatic | Transmission | 7-speed automatic |
| 4WD | Drivetrain | 4WD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Lexus GX vs Mercedes-Benz G-Class across model years
- Lexus GX
- Mercedes-Benz G-Class
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 42 2018 midsize & large SUVs, the Lexus GX ranks 37th and the Mercedes-Benz G-Class 42nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Lexus GX or the 2018 Mercedes-Benz G-Class?
Measured by cost to drive, the Lexus GX. The Lexus GX is rated 16 MPG combined and the Mercedes-Benz G-Class 13 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Lexus GX vs. the Mercedes-Benz G-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,703 for the Lexus GX and $4,558 for the Mercedes-Benz G-Class.
Lexus GX vs Mercedes-Benz G-Class in other years
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