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GMC Sierra 1500 MPG

MPG Number of Vehicles
14 miles per gallon 1 vehicles
15 miles per gallon 1 vehicles
16 miles per gallon 2 vehicles
17 miles per gallon 1 vehicles
18 miles per gallon 1 vehicles
Model Year Body/Powertrain MPG  
2011 2011 4dr Extended Cab 6.5ft bed 315-hp 5.3L V8 6-sp shiftable automatic RWD 18.29
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With the 355-horsepower 5.3L V8 engine, 6-speed shiftable automatic transmission, and rear-wheel drive, the 2011 GMC Sierra 1500 has been averaging 18.29 MPG (miles per gallon).

The 2011 GMC Sierra 1500s in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 70 percent of the miles driven). The rest of the miles were in heavy traffic (5 percent), in the suburbs (0 percent), and in the city (0 percent).

In addition, the average 2011 GMC Sierra 1500 in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time.
2011 2011 4dr Extended Cab 6.5ft bed 403-hp 6.2L V8 6-sp shiftable automatic RWD 16.5
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2011 2011 4dr Extended Cab 6.5ft bed 302-hp 4.8L V8 4-sp automatic 4WD, part-time w/low range 15.19
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2011 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.