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Hummer H3 MPG

MPG Number of Vehicles
13 miles per gallon 1 vehicles
14 miles per gallon 2 vehicles
15 miles per gallon 13 vehicles
16 miles per gallon 10 vehicles
17 miles per gallon 15 vehicles
18 miles per gallon 7 vehicles
19 miles per gallon 3 vehicles
20 miles per gallon 3 vehicles
Model Year Body/Powertrain MPG  
2009 2009 4dr SUV 295-hp 5.3L V8 4-sp automatic AWD w/low range 20
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With the 300-horsepower 5.3L V8 engine, 4-speed automatic transmission, and all-wheel drive w/low range, the 2009 Hummer H3 has been averaging 20 MPG (miles per gallon).

The 2009 Hummer H3s in this analysis were driven mostly in the city (about 100 percent of the miles driven). The rest of the miles were in the suburbs (0 percent), on the highway at an average speed of 60 miles per hour (0 percent), and in heavy traffic (0 percent).

In addition, the average 2009 Hummer H3 in this analysis was driven on flat terrain with a light foot and the AC on most or all of the time.
2008 2008 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 19.5
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2008 2008 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 16.54
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2007 2007 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 18
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2007 2007 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 15.83
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2006 2006 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 16.57
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2006 2006 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 16.39
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What Our Members Are Saying about the Real Gas Mileage of the Hummer H3

Hummer H3 Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr SUV 220-horsepower 3.5L I5
4-speed automatic AWD w/low range		 It could be better... Why no medium-duty diesel? see full Hummer H3 review
2006 4dr SUV 220-horsepower 3.5L I5
4-speed automatic AWD w/low range		 I knew what I was getting into when I bought it. But come on, 14.8mg on the freeway? I would have bought an H2 if I knew that was going to happen. You have to drive like a grandpa to achieve 17mpg. i.e. - under 65 on the freeway. see full Hummer H3 review
 

Hummer H3 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 Hummer H3's real-world MPG based on how and where you drive a car.