Oil is the lifeblood of your car’s engine, helping it run smoothly and efficiently. Over time, however, oil can degrade and ...

An oil analysis will tell you how long your car can really go between oil changes. They’re cheap, too—Blackstone’s standard ...

A motor oil's price doesn't necessarily reflect its quality, and it is safe to use cheap motor oil as long as it meets the ...

For example, it's usually heavier than regular motor oils, and using a thicker oil in a tired-out old V8 from the early 1970s (for example) can help boost compression and make the engine run better.