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GMC Sierra 1500 Fuel Economy Data

2dr Regular Cab 6.5ft bed 355-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 med none 20 80 0 0 N/A 14.400
flat med none 15 65 0 20 74 14.100
flat med none 5 35 0 60 68 17.600
flat med none 0 0 0 100 74 24.500
flat med none 5 40 0 55 74 16.800
flat med none 0 5 0 95 74 25.000
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2015 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.