2015 Ram 1500 EcoDiesel HFE’s 24-MPG Fuel Efficiency: How They Did It
Earlier this month, Fiat Chrysler announced an even higher fuel-efficiency rating for a new model of the 2015 Ram 1500 EcoDiesel–to be called HFE. The HFE–or High Fuel Efficiency–version boosts the fuel economy of what is already the most efficient full-size pickup truck on sale to an estimated 24 mpg combined (21 mpg city, 29 mpg highway)… …read more