Everyone thinks their job is tough, but the chemists formulating modern motor oil really earn their paychecks. As the EPA continues tightening up on emissions standards, it has forced motor oil ...

Cars with internal combustion engines — as opposed to electric vehicles, which still depend on a few fluids themselves — ...

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 ...

Although engine oil enters cars as a yellow liquid, you'll almost always find its color to be brown or black when it's being ...

A quart of fully synthetic motor oil is typically under $10, yet it can be all that stands between you and having to pay thousands for a new engine. To help prevent this, of course, oil companies ...