There’s just something about a diesel pickup truck that makes grown men regress into Tonka-loving children. Even my Prius-driving environmentalist friends in Berkeley admit they secretly want a diesel pickup. The problem of course is that diesel pickups are expensive (the cheapest diesel Ram 2500 is $36,975 and it doesn’t have an automatic transmission, the cheapest oil-burning F-250 is $38,250) and, for the majority of us, the high payload and towing capacities are overkill. While economical in a specific sense, the large diesel trucks aren’t “fuel-efficient” either. Until now. Mark your calendars folks, The 2014 Ram 1500 Eco Diesel is the half-ton truck in America sporting a small diesel engine.