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UMTRI: average new vehicle fuel economy in US dropped slightly in April

5 May 2014

The average fuel economy (window-sticker value) of new vehicles sold in the US in April was 25.2 mpg (9.33 l/100 km)—down 0.2 mpg from the value for March, according to the monthly report from Dr. Michael Sivak and Brandon Schoettle at the University of Michigan Transportation Research Institute. They suggested that the drop likely reflects the increased proportion of light trucks among newly purchased vehicles.

Vehicle fuel economy is up 5.1 mpg since October 2007, the first month of their monitoring.

Sales-weighted fuel economy. Click to enlarge.

The University of Michigan Eco-Driving Index (EDI)—an index that estimates the average monthly emissions of greenhouse gases generated by an individual US driver—reached a record low of 0.77 in February (the lower the value the better). This value indicates that the average new-vehicle buyer produced 23% lower emissions in December 2013 than in October 2007. The EDI takes into account both vehicle fuel economy and distance driven (the latter relying on data that are published with a two-month lag).

Eco-Driving Index. Click to enlarge.

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