HUMMER H3 2008 Performance Specs

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3,653 cc 3.7 liters in-line 5 front engine with 95.5 mm bore, 102.0 mm stroke, 10.0 compression ratio, double overhead cam, variable valve timing/camshaft and four valves per cylinder LLR

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Unleaded fuel 87

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Fuel consumption: EPA 08 urban (mpg): 14, country/highway (mpg): 18, combined (mpg): 15, 6.0, 7.7, 6.4, 17, 22 and 18

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Multi-point injection fuel system

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23.0 gallon main unleaded fuel tank 19.1

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Heavy duty battery

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Power: 180 kW , 242 HP SAE @ 5,600 rpm; 242 ft lb , 328 Nm @ 4,600 rpm