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UMTRI: new vehicle average fuel economy fell slightly in June

The average fuel economy (window-sticker value) of new vehicles sold in the US in June was 25.5 mpg (9.23 l/100 km)—down 0.1 mpg from the all-time record high in May, according to the monthly report from Dr. Michael Sivak and Brandon Schoettle at the University of Michigan Transportation Research Institute (UMTRI).

Despite the small dip in June, vehicle fuel economy is up 5.4 mpg since October 2007 (the first month of their monitoring).

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The University of Michigan Eco-Driving Index (EDI)—an index that estimates the average monthly emissions of greenhouse gases generated by an individual U.S. driver—stood at 0.80 in April (the lower the value the better). This value indicates that the average new-vehicle driver produced 20% lower emissions in April than in October 2007.

The EDI takes into account both vehicle fuel economy and distance driven (the latter relying on data that are published with a two-month lag).

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