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GMC Sierra 1500 MPG

MPG Number of Vehicles
12 miles per gallon 1 vehicles
13 miles per gallon 0 vehicles
14 miles per gallon 0 vehicles
15 miles per gallon 0 vehicles
16 miles per gallon 1 vehicles
17 miles per gallon 2 vehicles
18 miles per gallon 1 vehicles
19 miles per gallon 1 vehicles
20 miles per gallon 2 vehicles
21 miles per gallon 0 vehicles
22 miles per gallon 1 vehicles
Model Year Body/Powertrain MPG  
2008 2008 4dr Crew Cab 5.5ft bed 315-hp 5.3L V8 4-sp automatic 4WD w/low range 17.9
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With the 355-horsepower 5.3L V8 engine, 10-speed shiftable automatic transmission, and four-wheel drive w/low range, the 2008 GMC Sierra 1500 has been averaging 17.9 MPG (miles per gallon).

The 2008 GMC Sierra 1500s in this analysis were driven mostly on the highway at an average speed of 60 miles per hour (about 64 percent of the miles driven). The rest of the miles were in heavy traffic (9 percent), in the suburbs (0 percent), and in the city (0 percent).

In addition, the average 2008 GMC Sierra 1500 in this analysis was driven on flat terrain with a light foot and the AC not used at all.
2008 2008 4dr Crew Cab 5.5ft bed 302-hp 4.8L V8 4-sp automatic 4WD, part-time w/low range 14
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2008 2008 4dr Extended Cab 6.5ft bed 315-hp 5.3L V8 4-sp automatic 4WD w/low range 17
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2008 2008 4dr Extended Cab 6.5ft bed 315-hp 5.3L V8 4-sp automatic RWD 20.3
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2008 2008 4dr Extended Cab 5.5ft bed 315-hp 5.3L V8 4-sp automatic 4WD w/low range 17
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2008 2008 2dr Regular Cab 8ft bed 302-hp 4.8L V8 4-sp automatic RWD 22
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2008 2008 2dr Regular Cab 6.5ft bed 195-hp 4.3L V6 4-sp automatic RWD 19.5
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2008 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.

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