For a long while, if you wanted a diesel-powered pickup truck you had to move beyond the half-ton segment and into something much bigger. But that’s changed as the key players have given diesel a shot in their volume models. And now for its second act, Ram’s EcoDiesel is more powerful and fuel efficient. In 2014 Ram broke the mold with the first light-duty diesel pickup in years. Packing 420 pound-feet of torque and delivering 26mpg highway, it offered a combination truck buyers had long been clamoring for. Of course, FCA cheated the Clean Air Act by installing defeat devices but they did start a movement.