It is widely known that diesel engine oils contain more Zinc (ZDDP) than regular passenger motor oils, but does that make a diesel engine oil (HD) a good choice for hot rods or race cars? To answer ...

Without getting too technically geeky, Diesel Exhaust Fluid, or DEF, is an aqueous urea solution that's generally 32.5-percent urea and 67.5 percent deionized water. It's injected into the diesel ...

An oil change is a great starter task for anyone learning about car maintenance, but picking the right oil for the engine to is just as important as technique, especially when faced with deciding ...

Diesel engines need extra care in winter to avoid problems like fuel gelling, weak batteries, and thick oil. Key tips include ...

Diesel engines run hot under load, but extreme heat means trouble. Here are the hidden causes of rising exhaust temps and how ...

Most drivers know that regular oil changes are necessary to maintain the life and performance of their vehicle. For many people, changing the oil and filter every 3,000 miles is the norm, but ...