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Hummer H3 Fuel Economy (km/L)

km/L Number of Vehicles
37 kilometers per liter 1 vehicles
38 kilometers per liter 0 vehicles
39 kilometers per liter 3 vehicles
40 kilometers per liter 0 vehicles
41 kilometers per liter 1 vehicles
42 kilometers per liter 0 vehicles
43 kilometers per liter 0 vehicles
44 kilometers per liter 0 vehicles
45 kilometers per liter 0 vehicles
46 kilometers per liter 1 vehicles
Model Year Body/Powertrain km/L  
2008 2008 4dr SUV 242-hp 3.7L I5 5-sp manual AWD w/low range 45.9
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With the 178 kilowatts 3.7L I5 engine, 5-speed manual transmission, and all-wheel drive w/low range, the 2008 Hummer H3 has been averaging 45.9 L/100km (liters per 100 kilometers).

The 2008 Hummer H3s in this analysis were driven mostly on the highway at an average speed of 55 kilometers per hour (about 50 percent of the kilometers driven). The rest of the kilometers were in the city (50 percent), in the suburbs (0 percent), and in heavy traffic (0 percent).

In addition, the average 2008 Hummer H3 in this analysis was driven on hilly terrain with a light foot and the AC on only some of the time.
2008 2008 4dr SUV 242-hp 3.7L I5 4-sp automatic AWD w/low range 38.92
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2008 Hummer H3 Gas Mileage (km/L)

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 km/L based on how and where you drive a car.