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Model Year Body/Powertrain MPG  
2008 2008 4dr SUV, ext. 403-hp 6.2L V8 6-sp shiftable automatic AWD 14.5
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With the 420-horsepower 6.2L V8 engine, 6-speed shiftable automatic transmission, and four-wheel drive w/low range, the 2008 GMC Yukon has been averaging 14.5 MPG (miles per gallon).

The 2008 GMC Yukons in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 67 percent of the miles driven). The rest of the miles were in the city (28 percent), in the suburbs (0 percent), and in heavy traffic (0 percent).

In addition, the average 2008 GMC Yukon in this analysis was driven on flat terrain with an ultra-light foot and the AC not used at all.
2008 2008 4dr SUV, ext. 320-hp 5.3L V8 4-sp automatic 4WD w/low range 17
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2008 2008 4dr SUV, ext. 320-hp 5.3L V8 6-sp shiftable automatic RWD 16.25
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2008 GMC Yukon Gas Mileage (MPG)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the GMC Yukon's real-world MPG based on how and where you drive a car.