Biodiesel is available in several blends, with the most common ones being B5 and B20. The numbers indicate what sets these ...

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 ...

As a diesel owner, I know the hectic heartbreak of trying to keep such an unpopular drivetrain up and running in the U.S. Most people think of big semi trucks when they think of diesel, or they think ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Red diesel fuel has such a unique color and is so hard to come by that you might think it's some kind of high-performance fuel. Actually, it's just regular diesel with a very specific purpose and a ...