Vehicle Fuel Economy Falls Again In MayFor the second straight month, fuel economy of all new vehicles sold in the United States fell by 0.2 mpg, likely reflecting a slight drop in gas prices, say researchers at the University of Michigan Transportation Research Institute.
UM's New Eco-Driving Index Finds Environmental Impact Of New Vehicles ImprovingA new national index developed by the University of Michigan shows that exhaust emissions per driver of newly purchased vehicles are down 14 percent since late 2007.

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