Ram Trucks Ram Truck today announces that a new, more fuel-efficient model is joining its half-ton pickup truck lineup. The 2021 Ram 1500 Tradesman HFE EcoDiesel delivers an EPA highway fuel efficiency rating of 33 mpg. HFE EcoDiesel’s city and combined mpg ratings are 23 and 26, respectively. The HFE designation, or High Fuel Efficiency, is Ram’s way of highlighting this model’s fuel efficiency. “The Ram 1500 is America’s most powerful half-ton diesel pickup with 480 lb.-ft. of torque and the most capable light-duty diesel with towing capability up to 12,560 lbs., and delivers up to 1,000 miles of range on a single tank of fuel,” says Mike Koval Jr., Ram Brand chief executive officer, at Ram's' new Fiat/Peugot parent renamed Stellantis.