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GMC Sierra 1500 Fuel Economy Data

4dr Extended Cab 6.5ft bed 295-hp 5.3L V8 4-sp 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 hvy 4 8 88 0 N/A 17.300
flat med hvy 4 8 88 0 N/A 17.800
flat med hvy 4 8 88 0 N/A 17.000
flat med hvy 4 8 88 0 N/A 17.900

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What Our Members Are Saying about the Real Gas Mileage of the 2005 GMC Sierra 1500

2005 GMC Sierra 1500 Real Gas Mileage: Pros
YearBody/PowertrainComment
2004 4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8
4-speed automatic 4WD w/low range
Its great. see full GMC Sierra 1500 review
2005 GMC Sierra 1500 Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8
4-speed automatic 4WD w/low range
Fuel economy is a suggestion - the truck, like all trucks, gets mediocre fuel economy. see full GMC Sierra 1500 review
 

2005 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.