A diesel particulate filter is an important, and required, part for any diesel vehicles. Here's what it does and how you can ...

As a diesel ... trucks when they think of diesel, or they think of the sad, unreliable diesel cars that invaded America during the '70s gas crisis, with their loud engines and stinky exhaust.

One of the most recognizable semi truck features are the vertical exhaust stacks. Other than looking cool, do they actually ...