Some engines are difficult to repair, which is no good if they're also unreliable. What do mechanics say? What's the most difficult diesel to work on?

There are legendary powerplants within the automotive sphere that are known to be the most reliable diesel engines ever built, like the Ford 6.7-liter Power Stroke. In fact, with over three decades ...

Ford's history of diesel-powered pickup trucks dates back to 1982 when the automaker partnered with International — which would later become Navistar — to build a new diesel engine. The first Power ...