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Hummer H3 Fuel Economy (g/100m)

g/100m Number of Vehicles
5 gallons per 100 meters 7 vehicles
6 gallons per 100 meters 33 vehicles
7 gallons per 100 meters 13 vehicles
8 gallons per 100 meters 1 vehicles
Model Year Body/Powertrain g/100m  
2009 2009 4dr SUV 295-hp 5.3L V8 4-sp automatic AWD w/low range 5
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With the 224 kilowatts 5.3L V8 engine, 4-speed automatic transmission, and all-wheel drive w/low range, the 2009 Hummer H3 has been averaging 5 L/100km (liters per 100 kilometers).

The 2009 Hummer H3s in this analysis were driven mostly in the city (about 100 percent of the kilometers driven). The rest of the kilometers were in the suburbs (0 percent), on the highway at an average speed of 60 kilometers 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 5.13
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2008 2008 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 6.05
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2007 2007 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 5.56
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2007 2007 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 6.38
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2006 2006 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 6.07
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2006 2006 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 6.15
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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
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
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
 

Hummer H3 Gas Mileage (g/100m)

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 g/100m based on how and where you drive a car.

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