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Vehicle fuel economy at highest mark ever

September 16, 2013

Gas mileage of new vehicles sold in the U.S. reached an all-time high last month, according to UMTRI researchers.
 
Average fuel economy (window-sticker values) of cars, light trucks, vans and SUVs purchased in August was 24.9 mpg--up 0.1 mpg from July, according to UMTRI researchers Michael Sivak and Brandon Schoettle. Overall, gas mileage is up 4.8 mpg since October 2007, the first month of monitoring.
 
Fuel economy of model-year 2013 vehicles sold since October 2012 is 24.7 mpg, up 1.2 mpg from 2012 models.
 
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.
 
During June, the EDI held steady at 0.81 for the second straight month (the lower the value, the better). The index currently shows that emissions of greenhouse gases per driver of newly purchased vehicles are down 19 percent, overall, since October 2007.
 
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