U.S. New-Vehicle Fuel Economy Hits a Record High

The average government-rated fuel economy of new cars and light trucks sold in the U.S. in August was a record-high 24.9 mpg, according to the University of Michigan Transportation Research Institute.

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The average government-rated fuel economy of new cars and light trucks sold in the U.S. in August was a record-high 24.9 mpg, according to the University of Michigan Transportation Research Institute.

UMTRI’s monthly calculation has advanced 4.8 mpg since it began in October 2007. On a model year basis, the sales-weighted average has advanced from 25.5 mpg in 2008 to an estimated 29.8 mpg this year.

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The institute says average emission levels for new vehicles are dropping too. Its Eco-Driving Index, a measure of greenhouse gases produced per month by new vehicles purchased that month, has improved 19% since 2007.