The average fuel economy for new cars and light trucks sold in the U.S. in December fell 0.2 mpg from November to 25.0 mpg, the University of Michigan Transportation Research Institute reported Friday.
The window-sticker value of the average fuel economy for new light vehicles sold in the U.S. has risen 4.9 mpg since the start of the study, led by researchers Michael Sivak and Brandon Schoettle, in October 2007.
U.S. new light-vehicle sales dropped 5 percent in December from a year earlier, with car deliveries down 17 percent, according to the Automotive News Data Center. Light-truck sales, including crossovers, edged up 1.6 percent in December, with pickup sales rising 5.8 percent and crossover sales, excluding premium vehicles, growing 2.2 percent.
The average fuel economy for new cars and light trucks was unchanged in December from the same period last year. The average price of a gallon of regular gasoline on Friday was $2.49, up from $2.364 a year ago.