Research

2012 Mercedes-Benz GL Class Green

6.0
On Green

Large SUVs rarely earn gas mileage ratings that look good in the grander scheme of things. It holds true for the Mercedes-Benz GL-Class, though it's offered with a green powertrain option.

The turbodiesel engine found in the GL 350 helps the fuel-economy cause along, but the six-cylinder is rated at 17/21 mpg--a shade less than the hybrid Chevrolet Tahoe. The diesel's driveability make it a worthwhile option, though every so often, your service department will need to refill the GL 350 BlueTEC with special fluid that treats its exhaust for cleaner emissions.

Diesel versions earn better numbers, but on the whole the Mercedes-Benz GL Class isn't that efficient.
From the diesel's peak, fuel economy across the GL-Class lineup drops sharply. With the 3.5-liter V-6 aboard, the GL450 checks in at 13/18 mpg. Tap the power of the GL550's 382-horsepower V-8, and fuel economy falls to 12/17 mpg--right down there with the least efficient Escalades and Range Rovers.

Research Other Topics

8.8
on a scale of 1 to 10
Styling
9.0
Expert Rating
Performance
8.0
Expert Rating
Comfort & Quality
9.0
Expert Rating
Safety
9.0
Expert Rating
Features
9.0
Expert Rating
Fuel Economy
6.0
Expert Rating
Looking for other models of the Mercedes-Benz GL Class?
Read reviews & get prices
Compare the 2012 Mercedes-Benz GL Class against the competition
  • 2011 Cadillac Escalade ESV AWD 4-door Base Angular Front Exterior View

    2012 Cadillac Escalade

    8.6
    Compare Cars
  • 2012 Land Rover Range Rover

    2012 Land Rover Range Rover

    9.0
    Compare Cars
  • 2011 Lexus LX 570 4WD 4-door Angular Front Exterior View

    2011 Lexus LX 570

    7.6
    Compare Cars
Compare All Cars