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The Green Car Company Gas Mileage Tips Driving More Efficiently Maintaining Your Car Hybrid Vehicles How Hybrids Work Tax Incentives Alternative Fuel Vehicles Flex-Fuel Vehicles How Fuel Cells Work Energy Efficiency Diesel Vehicles and Fuels Energy Efficient Technologies Find Your Car's Energy Impact Score New Fuel Economy Ratings How Vehicles are Tested Your MPG Will Vary Print the 2007 Fuel Economy Guide
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