According to user observations, the Hummer H2 generally gets around 10 or 11 miles per gallon. General Motors is not required to provide statistical mileage data due to the Hummer's gross vehicle weight rating, which is ... More »

The combined government estimate for the 2010 H3 with a 3.7-liter five-cylinder engine and automatic transmission is 16 miles per gallon. This represents a highway rating of 18 miles per gallon and a city rating of 14 mi... More »

A 2010 Hummer H3 gets about 14 miles per gallon in the city and 18 miles per gallon on the highway. On average, with a combination of city and highway driving, the Hummer H3 gets about 15 miles per gallon. More »

The Hummer H2's fuel economy ranks as one of the worst of any consumer automobile, with reviewers reporting the vehicle gets around 8-10 miles per gallon in the city and 13 mpg on the highway. Poor maintenance can degrad... More »

Common mechanical problems with the Hummer H2 include issues with the brakes and suspension, issues with heating and air conditioning, fuel pump failures, and issues with the vehicle battery draining for a variety of rea... More »

The Hummer H2 SUT is a large four-wheel drive sport utility truck powered by a 6.2-liter V-8 engine producing 393 peak horsepower and 415 foot-pounds of torque. The H2 is designed especially for off-road use and includes... More »

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The Hummer H2 gets 10 mpg in the city and 13 mpg on the highway, according to tests performed by Car and Driver. Excessive fuel consumption is due to the vehicle's large 6.0-liter V8 engine. More »

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