The average fuel economy of new vehicles sold in May was 25.3 mpg.
Data comes from University of Michigan researchers Michael Sivak and Brandon Schoettle, who have been monitoring the fuel economy of new vehicles sold since October 2007. The sales-weighted fuel economy is calculated from the monthly sales of individual models of light-duty vehicles, which includes cars, SUVs, vans, and pickup trucks, and the combined city/highway fuel economy ratings that are published in the EPA Fuel Economy Guide.
SEE ALSO: Average Fuel Economy Back on the Rise
May’s value of 25.3 mpg matches April 2017 as well as May 2016. Fuel economy is up 5.2 mpg since October 2007, but is down 0.2 mpg from the peak of 25.5 mpg in August 2014.