Water and diesel fuel don't mix. Although all diesel grades contain a minuscule percentage of water from the refinery, moisture in the diesel tank won't cause problems until the water content reaches ...

If you have a diesel-powered vehicle that's been sitting unused for more than a few months, you might be wondering if its fuel has ended up going bad.

While diesel may not be the most popular fuel source for passenger vehicles, it's still extremely common. These engines are responsible for powering more than you may realize, and diesel motors can be ...