Mainstream diesel performance hit a home run when Dodge introduced the Cummins-powered Dodge Ram in 1989. In stock trim, the trucks were reliable yet underpowered, but it wasn’t long before ...

Move over diesel – prepare to make way in the field and on the road for more ethanol-fueled farm equipment and over-the-road trucks. Thanks to work by ClearFlame Engine Technologies, the modifications ...

Here's the story of perhaps the most legendary diesel engine ever made, the Cummins 5.9L.

If you're into diesel trucks, you may already be aware of the fact that a thriving market exists for aftermarket enhancements and modifications. There are various ways to get more horsepower out of ...

Diesel engines lack the spark of gas engines, both literally and figuratively. They don't need a spark plug since they ignite the fuel using only compression, but also lack the 'je ne sais quoi' that ...

Remember the month of September 2015? That’s when the Environmental Protection Agency opened an investigation into Volkswagen for using illegal software in turbo diesel-engined vehicles. The ...