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 ...

Dear Doctor: I own a few pre-1970 cars and have heard many stories about these older car engines having camshaft failure from the use of the wrong engine oil. Can you recommend the correct oil?

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 ...

Walk into any parts store and you'll see the rows of glossy bottles promising to stop engine wear, boost fuel economy, and make your old clunker run like it just rolled out of the factory. The auto ...

When you build, rebuild, or buy a new engine, one necessary concept for you to consider is that of breaking the engine in properly for use. This is an important part of your engine's life, and without ...

Engine oil additives, in general, are meant for the engine's well-being but they do have a few drawbacks Photo credit: Thinkstock Engine oil additives improve lubrication, performance in extreme ...

We earn commissions from purchases you make using links in our articles. Learn more. Most drivers know that regular oil changes are necessary to maintain the life and performance of their vehicle. For ...

Additives are like energy drinks for your engine or at least that is how they are marketed. The additives supposedly help your engine to run smooth, become more powerful and fuel efficient, protect ...

Additives represent 15 to 20 percent of a gallon of oil with the balance being high-quality base oil. Additive packages play a key role in helping to keep an engine clean and protected from varnish ...