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Hummer H3 MPG

Model Year Body/Powertrain MPG  
2009 2009 4dr SUV 295-hp 5.3L V8 4-sp automatic AWD w/low range 20 See details
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2008 2008 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 19.5 See details
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2008 2008 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 16.54 See details
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2007 2007 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 18 See details
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2007 2007 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 15.83 See details
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2006 2006 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 16.57 See details
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2006 2006 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 16.39 See details
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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.