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Mercedes-Benz GL 350 BlueTEC 4MATIC (X 166)
Shown: Mercedes-Benz GL 350 BlueTEC 4MATIC (X 166). Photo: M 93, CC BY-SA 3.0 DE, via Wikimedia Commons
  • Gas
  • Standard SUVs
  • MY2007–2016

Mercedes-Benz GL-Class MPG & Fuel Cost by Year

10 model years · 2007–2016

19 MPG
Combined
17 MPG
City
21 MPG
Highway
Annual cost · MY2016 GL450 4matic 3.0L 6-cyl turbo 4WD
$4,340

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

All Mercedes-Benz models

Mercedes-Benz GL-Class fuel economy at a glance

EPA has rated the Mercedes-Benz GL-Class for 10 model years, 2007 to 2016. Across those years its combined rating runs 14–20 MPG. The latest model year, 2016, has 3 configurations rated 14–19 MPG combined and costing $4,340–$5,570 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2007 is the 2008 GL320 CDI 4matic 3.0L 6-cyl turbo 4WD, at 20 MPG.

Mercedes-Benz GL-Class MPG by year

14161820 2007201020132016 Gas Diesel 14161820 2007201020132016 Gas Diesel
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Mercedes-Benz GL-Class: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG)Diesel (MPG) $/yr
2013-2016 Generation page
2016 14–19— $4,340–$5,570
2015 14–19— $4,330–$5,570
2014 14–16— $5,170–$5,570
2013 14–16— $5,170–$5,570
2010-2012 Generation page
2012 14–15— $5,500–$5,670
2011 14–15— $5,500–$5,670
2010 14— $5,740
2007-2009 Generation page
2009 14–15— $5,360–$5,740
2008 14–1520 $4,720–$5,740
2007 1520 $4,720–$5,360

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Mercedes-Benz GL-Class generations

3 generations between 2007 and 2016. Open one for the table of every model year and configuration.

2016 powertrain options

Gas · 3.0L, 4.7L, 5.5L
Combined
14–19 MPG
Per year
$4,340–$5,570
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Mercedes-Benz GL-Class's gas mileage by year?

EPA combined ratings for the Mercedes-Benz GL-Class run 14–20 MPG across model years 2007 to 2016. The latest year, 2016, is rated 14–19 MPG.

Which Mercedes-Benz GL-Class model year has the best gas mileage?

The 2008 Mercedes-Benz GL-Class GL320 CDI 4matic 3.0L 6-cyl turbo 4WD has the highest combined rating since 2007, at 20 MPG.

How much does a Mercedes-Benz GL-Class cost to fuel per year?

For MY2016, EPA-rated configurations cost $4,340–$5,570 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $4,340.

Has the Mercedes-Benz GL-Class's fuel economy improved over time?

No. The most efficient configuration moved from 20 MPG in 2007 to 19 MPG in 2016, 1 MPG less.

How many generations of the Mercedes-Benz GL-Class are there?

EPA data covers 3 generations of the Mercedes-Benz GL-Class: 2013-2016, 2010-2012, 2007-2009. Each has its own page with a table for every model year.