Oil analysis provides a glimpse inside your engine to gauge lubricant and component condition without so much as removing a bolt or bloodying a knuckle. Here’s how to do it.
Generally speaking, synthetic blends and semi-synthetic refer to the same thing: an oil that uses a combination of conventional and synthetic base oils in its formulation.
The primary difference between DOT 3 and DOT 4 brake fluid is their respective boiling points. I suspect I know your next question. But first, some background. The U.S. Department of Transportation (DOT) classifies brake fluid into four main categories:
While most motorists pay someone to change their oil, 25 percent of us still crawl under our vehicles and do it ourselves. When we’re done, what do we do with the used motor oil?
