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GMC Sierra 1500 Fuel Economy Data

4dr Extended Cab 6.5ft bed 315-hp 5.3L V8 6-sp shiftable automatic 4WD w/low range

flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
flat v.lt light 10 40 10 40 65 12.907
flat light none 10 40 10 40 55 15.000
flat light light 10 40 10 40 65 19.000
flat light light 10 20 30 40 62 16.300

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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.