Average US new vehicle fuel economy in December down from November; 2017 average unchanged from 2016
Green Car Congress
JANUARY 5, 2018
The average fuel economy (window-sticker value) of new vehicles sold in the US in December was 25.0 The average fuel economy of new vehicles sold in the US 2017 was 25.2 mpg reached in August 2014. in October 2017, unchanged from September 2017 (the lower the value, the better).
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