Slight gain in U.S. fuel economy reported for March

Slight gain in U.S. fuel economy reported for March http://ift.tt/2pmpnxa average fuel economy of new light vehicles sold in the U.S. in March rose to 25.2 mpg, up by 0.1 from the 25.1 mpg recorded in January and February, the U-M Tansportation Research Institute said.