Synthetic oil used to be something only performance cars needed, but not anymore. Now it’s the manufacturer-recommended engine lubricant in many mainstream vehicles, such as the Subaru Forester ...

Some of the best motor oil brands have been refining their products since the internal combustion engine was first created and have had long and illustrious histories in motorsports, flight ...

For instance, many diesel engines today still use a 40-weight oil (albeit multigrade or semi-synthetic) which can tell us about the changes in the viscosity requirements over the years.

To prove the haters wrong, he teamed up with dyno expert Don MacKaskill to perform an experiment using a V-8 sitting on an engine stand. Most engine oil pumps get oil directly from the filter ...

This includes valuation and performance of current and advanced gas turbine engine lubricants for higher temperature applications and the development of improved off-line and in-line diagnostic ...

Your car’s oil is its lifeblood, and regular oil changes are key to a healthy engine. Here’s what you auto know to keep your ...