Engine oil seems so simple. It's slippery. It keeps metal parts from fusing together. It's messy, especially when it has been squeezed, slung, and sprayed around the inside of a hot engine for ...

It is no secret that without the proper amount of Zinc Dialkyl Dithio Phospate (ZDDP), flat tappet camshafts in race engines can experience problems. The simple solution to that issue is to use the ...

John Paul, AAA Northeast's Car Doctor, answers a question from a reader curious about using Marvel Mystery Oil. AP Photo/David Zalubowski Q. I perform routine maintenance on my family’s cars and just ...