Fuel economy of vehicles sold last year at record-high

January 10, 2014 by Bernie Degroat

Gas mileage of new vehicles sold in the U.S. was 24.8 mpg in December, the same as the average for all of 2013—the best annual mark ever, say researchers at the University of Michigan Transportation Research Institute.

Average fuel economy (window-sticker values) of cars, , vans and SUVs purchased last year was up 1.0 mpg from 2012 and 3.9 mpg from 2008, the first full year of monitoring, according to UMTRI researchers Michael Sivak and Brandon Schoettle.

In addition to average fuel economy, Sivak and Schoettle issued a monthly update of their national Eco-Driving Index, which estimates the average monthly emissions generated by an individual U.S. driver. The EDI takes into account both the fuel used per distance driven and the amount of driving—the latter relying on data that are published with a two-month lag.

For the fourth straight month, the EDI tied its best mark at 0.80 (the lower the value, the better) during October, the seventh time that it has registered that low in the past two years. The index currently shows that emissions of per driver of newly purchased vehicles are down 20 percent, overall, since October 2007.

Explore further: 2012: A record year for fuel economy

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