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GMC Sierra 1500 MPG

MPG Number of Vehicles
15 miles per gallon 1 vehicles
16 miles per gallon 4 vehicles
17 miles per gallon 4 vehicles
18 miles per gallon 11 vehicles
19 miles per gallon 10 vehicles
20 miles per gallon 1 vehicles
Model Year Body/Powertrain MPG  
2010 2010 4dr Crew Cab 5.5ft bed 403-hp 6.2L V8 6-sp shiftable automatic AWD 18.5
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With the 420-horsepower 6.2L V8 engine, 6-speed shiftable automatic transmission, and all-wheel drive, the 2010 GMC Sierra 1500 has been averaging 18.5 MPG (miles per gallon).

The 2010 GMC Sierra 1500s in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 50 percent of the miles driven). The rest of the miles were in the city (25 percent), in the suburbs (0 percent), and in heavy traffic (0 percent).

In addition, the average 2010 GMC Sierra 1500 in this analysis was driven on hilly terrain with a medium foot and the AC on only some of the time.
2010 2010 4dr Extended Cab 6.5ft bed 315-hp 5.3L V8 6-sp shiftable automatic 4WD w/low range 16.77
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2010 2010 2dr Regular Cab 6.5ft bed 302-hp 4.8L V8 4-sp automatic RWD 18
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2010 GMC Sierra 1500 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 Sierra 1500's real-world MPG based on how and where you drive a car.