Question:I thoroughly enjoyed the tech article "When Good Cams Go Bad" (June '06), but I have a couple of questions: If you have an older car without a catalytic converter but don't have flat tappets, ...

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 ...

"The past," said English novelist L.P. Hartley in his 1953 novel The Go-Between, "is a foreign country; they do things ...

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

Oil additives play an essential role in maintaining car engine health. They provide additional lubrication, protect against wear and tear, and help remove impurities and build-up from your engine.