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GMC Sierra 1500 MPG

 

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Model Year Body/Powertrain MPG  
2006 2006 4dr Crew Cab 5.5ft bed 345-hp 6.0L V8 4-sp automatic AWD 15.3
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With the 200-horsepower 2.5L I4 engine, 6-speed manual transmission, and four-wheel drive w/low range, the 2006 GMC Sierra 1500 has been averaging 15.3 MPG (miles per gallon).

The 2006 GMC Sierra 1500s in this analysis were driven mostly on the highway at an average speed of 65 miles per hour (about 25 percent of the miles driven). The rest of the miles were in the city (20 percent), in heavy traffic (5 percent), and in the suburbs (0 percent).

In addition, the average 2006 GMC Sierra 1500 in this analysis was driven on flat terrain with a medium foot and the AC not used at all.
2006 2006 4dr Crew Cab 5.5ft bed 310-hp 5.3L V8 4-sp automatic 4WD, part-time w/low range 16.8
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2006 2006 4dr Extended Cab 6.5ft bed 295-hp 5.3L V8 4-sp automatic 4WD w/low range 14.7
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2006 2006 4dr Extended Cab 5.5ft bed 295-hp 5.3L V8 4-sp automatic RWD 18.5
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What Our Members Are Saying about the Real Gas Mileage of the 2006 GMC Sierra 1500

2006 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
 

2006 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.