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GMC Sierra 1500 Fuel Economy (L/100km)

L/100km Number of Vehicles
12 liters per 100 kilometers 1 vehicles
13 liters per 100 kilometers 3 vehicles
14 liters per 100 kilometers 4 vehicles
15 liters per 100 kilometers 3 vehicles
16 liters per 100 kilometers 1 vehicles
Model Year Body/Powertrain L/100km  
2005 2005 4dr Crew Cab 5.5ft bed 295-hp 5.3L V8 4-sp automatic 4WD w/low range 14.6
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With the engine, transmission, and rear-wheel drive, the 2005 GMC Sierra 1500 has been averaging 14.6 L/100km (liters per 100 kilometers).

The 2005 GMC Sierra 1500s in this analysis were driven mostly on the highway at an average speed of 68 kilometers per hour (about 81 percent of the kilometers driven). The rest of the kilometers were in the city (9.7 percent), in the suburbs (0 percent), and in heavy traffic (0 percent).

In addition, the average 2005 GMC Sierra 1500 in this analysis was driven on hilly terrain with a light foot and the AC on only some of the time.
2005 2005 4dr Extended Cab 6.5ft bed 310-hp 5.3L V8 4-sp automatic 4WD w/low range 14.7
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2005 2005 4dr Extended Cab 6.5ft bed 295-hp 5.3L V8 4-sp automatic 4WD w/low range 13.43
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2005 2005 4dr Extended Cab 6.5ft bed 285-hp 4.8L V8 4-sp automatic 4WD w/low range 13.5
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2005 2005 2dr Regular Cab 6.5ft bed 285-hp 4.8L V8 4-sp automatic RWD 12.1
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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 (L/100km)

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 L/100km based on how and where you drive a car.