There's no denying that WD-40 is a versatile tool given all its applications, but to serve as a substitute for motor oil?

A Columbus, Ohio plant turns black crankcase waste back into clean motor oil. Here's what physically happens inside, and why ...

Car maintenance can be as difficult as it is messy. This is primarily because there are just so many fluids involved. Fluids of the darkest, stickiest, most potentially dangerous sort, in many cases.

Low or aging fluids can lead to vehicle problems.

For those who aren't avid automotive enthusiasts, a vehicle's engine probably isn't at the forefront of your mind too often. You slip into the driver's seat, start the car and head to your destination ...

It doesn't matter if you have a hybrid or conventional gas-powered car, a good motor oil can make the difference between a long-lasting engine and a sputtery ride. Here's what you should look for when ...

Add Yahoo as a preferred source to see more of our stories on Google. As engine standards change, the oil that protects them has to change too — especially for drivers buying new trucks in the next ...