Mercedes-Benz G-Class MPG by Year

By , Gas Mileage Calculators

Here's the official EPA Mercedes-Benz G-Class MPG for every engine and drivetrain from 2002 to 2027.

Best 2026 G-Class
18 MPG
2026 G550 (4WD)
Most efficient G-Class ever
18 MPG
2021, 2025-2026 G550
Electric G-Class
71 MPGe
2027 G 580 with EQ Technology

G-Class MPG by Year and Version

3 configurations

The EPA has rated 58 configurations of the G-Class across gas and electric versions. Pick a year to compare engines and drivetrains.

EPA ratings for the 2026 Mercedes-Benz G-Class
VersionEngineTransmissionDriveCityHwyCombinedEPA
G550Mild hybridPremium Gasoline3.0L 6-cylAuto 9-spd4WD171918View
AMG G63Mild hybridPremium Gasoline4.0L 8-cylAuto 9-spd4WD141615View
G 580 with EQ TechnologyElectric, MPGeElectric, 239 mi rangeAuto (A2)4WD685662View

Electric and hydrogen versions are rated in MPGe, so compare them with each other rather than with the MPG figures.

G-Class MPG Over the Years

Each bar shows the range of combined MPG across every G-Class configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers. Electric versions are rated in MPGe, so they're left out of the chart and listed in the table instead.

Mercedes-Benz G-Class combined MPG range by model year
Gas engines only

Years When G-Class Fuel Economy Changed

Most years look a lot like the one before. These are the years where the EPA numbers moved in a way that matters if you're shopping for a used G-Class.

How the G-Class Compares

The EPA rated 55 full-size SUVs for 2026. The best G-Class version, at 18 MPG combined, ties for 43rd with 2 other models of 55. Combined ratings in the class run from 14 to 37 MPG, with a median of 21. Plug-in hybrids and electric models are ranked separately.

Best combined rating for each full-size SUV the EPA rated for 2026, top 5, plus the G-Class
RankModelCombined
1Jeep Cherokee37 MPG
2Toyota Grand Highlander36 MPG
3Toyota Highlander35 MPG
4Hyundai Palisade34 MPG
5Lexus TX27 MPG
43Mercedes-Benz G-Class18 MPG

What Does a G-Class Cost to Fuel or Charge?

Pick a G-Class, then enter your gas price (or electricity rate for an electric version) and how much you drive. The math uses the EPA city and highway ratings, weighted by how much of your driving happens in each.

Yearly cost
Enter a price
Per month-
Gallons per year-
Cost per mile-
Your blended MPG-
Real-world results vary with driving style, weather, tire condition and maintenance.

G-Class MPG Questions

Which G-Class year gets the best gas mileage?

The 2021 and 2025 and 2026 G550 holds the top EPA rating at 18 MPG combined (17 city, 19 highway).

Is there still a gas-only G-Class?

Yes. The 2026 G-Class lineup includes 2 gas-only versions, rated 15 to 18 MPG combined.

How efficient is the electric G-Class?

The most efficient 2026 G 580 with EQ Technology is rated at 62 MPGe combined, which works out to 54 kWh per 100 miles. Its EPA range is 239 miles.

Why doesn't my G-Class match the EPA numbers?

EPA ratings come from standardized lab tests. Your results depend on speed, climate, idling, passengers and cargo, roof racks, tire pressure and upkeep. The ratings are best for comparing one vehicle against another. To track your own numbers, try the MPG calculator.

Keep Going

Compare two vehiclesSee the yearly fuel cost gap between a G-Class and another vehicle. Price a road tripWork out the fuel cost for a trip in your G-Class on our sister site, FuelPriceCalculator.com. All Mercedes-Benz modelsRatings for the E-Class, C-Class, S-Class, SL-Class and every other Mercedes-Benz. Mercedes-Benz GLS-Class MPGAnother Mercedes-Benz, rated 15 to 21 MPG combined for 2026. Mercedes-Benz GLE-Class MPGAnother Mercedes-Benz, rated 17 to 23 MPG combined for 2026. Ford Expedition MPGA full-size SUV from Ford, rated 18 to 19 MPG combined for 2026. Lexus LX MPGA full-size SUV from Lexus, rated 19 to 20 MPG combined for 2026. Lincoln Navigator MPGA full-size SUV from Lincoln, rated 17 MPG combined for 2026.

Where These Numbers Come From

This page was built by Cedrick Reese from the U.S. EPA fuel economy dataset on fueleconomy.gov, which holds 58 ratings for the Mercedes-Benz G-Class from 2002 to 2027. Each row in the table links to the matching EPA vehicle record, so you can check any figure against the source. Ratings from before 2008 use the EPA's revised estimates, which put older vehicles on the same scale as newer ones. Electric versions are rated in MPGe, the EPA's miles-per-gallon equivalent, and the table also shows their official range. When the EPA posts an updated file with new model years or corrected ratings, this page is rebuilt from it. The cost calculator uses the gas or electricity price you enter rather than a national average, so the result fits where you live.

Ratings on this page come from the EPA file downloaded on October 1, 2026.

Sources