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 ...

Let's face it, most engine additives don't really improve performances. If you want to try one that does, here's what you should pick.

Snake oil. Mouse milk. Whiffle dust. Take your pick — few products have earned such unflattering sobriquets as aftermarket motor-oil additives. And for the very good reason that these promised ...

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 ...

The new Chevron Delo 600 ADF with OMNIMAX heavy duty engine oil is designed to help better protect the diesel engine and aftertreatment systems. Engine oil, lubricants and coolants maker Chevron ...

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 ...

I fully understand that the vast majority of oil additives are nearly or completely worthless in modern engines. But I've noticed that most of the discussions on this say something like "no engine ...

This image taken with an electron microscope shows that tiny carbon spheres added to motor oil reduce friction and wear typically seen in engines by as much as 25 percent, suggesting a similar ...

You may recall the article entitled "The Slippery Truth About Oil" from the June '06 issue of HPP (also available at www.highperformancepontiac.com). In it, we discussed the negative effects some ...