Gas mileage at all-time high

Apr 04, 2014 by Bernie Degroat

(Phys.org) —Fuel economy of new vehicles sold in the U.S. is now at its best mark ever, say researchers at the University of Michigan Transportation Research Institute.

Average fuel economy (window-sticker values) of cars, , vans and SUVs purchased in March was 25.4 , up 0.3 mpg from a revised February figure and 5.3 mpg from October 2007, the first full month of monitoring, according to UMTRI researchers Michael Sivak and Brandon Schoettle.

In addition to average , 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.

The EDI edged upward to 0.80 (the lower the value, the better) during January, on the heels of its two best months at 0.78 during November and December . The index currently shows that emissions of greenhouse gases per driver of newly purchased vehicles are down 20 percent, overall, since October 2007.

Explore further: Fuel economy of vehicles sold last year at record-high

More information: Fuel economy calculations, along with a graph and table of current and recent mpg: www.umich.edu/~umtriswt/EDI_sa… es-weighted-mpg.html
Eco-Driving Index calculations, along with a graph and table of current and recent values: www.umich.edu/~umtriswt/EDI_values.html

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