Every engine requires oil to function, though oil itself has changed a lot over the decades. Can you actually use synthetic oil in an older engine?

Ever wondered why there's a price difference between conventional and synthetic oil? Let's take a look at why they're different and which you should use.

My daughter had an oil change on her 2010 Toyota Corolla. The mechanic used synthetic oil. Do I have to use synthetic oil ...

We were not able to measure the improvement the small-block could have gained from a switch to the Driven synthetic oil, but in keeping with the LS engine's gain of another 11 horsepower and 8 lb ...

Semi-synthetic oil and full synthetic oil share some key characteristics, but they are not the same and knowing the difference between them can be critical.

Every engine requires oil to function, though oil itself has changed a lot over the decades. It's no longer a bad idea to use synthetic oil in an older engine.