The Ford 6.0 Power Stroke diesel succeeded the 7.3-liter oil-burning V-8 and was the Blue Oval's answer to stricter emissions regulations. It was also a strategic move in the evolving power battle ...

Diesel engines, for all their rugged usefulness, can be tremendously polluting. They produce more NOx — nitrogen oxides-based emissions – than gasoline-fed cars, as well as more particulates, aka soot ...

When we finally got it to the (unnamed) Ford dealership, the mechanics told us the engine was shot, and that we were looking at quite an expensive repair bill. But the engine didn't feel 'shot'.