Diesel engines have a deserved reputation as reliable workhorses, but that doesn't mean all diesels can be relied on to ...

Diesel engines have pistons that look different from the ones you'd see with a gas engine. There's a reason why that's the case, and it's all about performance.

The Cummins 6.7L and Ford Power Stroke 6.7L engines are arguably two of the most popular diesel units on the market. How do they stack up against each other?