According to the University of Michigan Transportation Research Institute, the average fuel economy of new vehicles based on their window sticker values was 25.1 mpg in February – identical to the value for January.
Overall, fuel economy ratings remained down 0.4 mpg from a peak of 25.5 mpg in August 2014 and up 5.0 mpg from a low of 20.1 mpg recorded when monitoring began in October 2007.
The University of Michigan Eco-Driving Index (EDI) was 0.83 in December, unchanged from November. The index estimates the average amount of greenhouse gas emissions generated by U.S. drivers on a monthly basis.
Taking into account a combination of fuel economy and driving distance, the EDI value indicates that on average, new-vehicle drivers produced 17% lower emissions in December compared to October 2007, but 5% more than a record low last reached in November 2013.