Royal Purple is an interesting brand of motor oil. I can't tell you the number of times I had customers bring their own purple bottles in for oil changes, all the while lecturing me on the merits ...

Looking for affordable motor oil that won’t let you down? Here are 3 cheap motor oils that deliver solid performance without ...

Engines need motor oil to run smoothly. It lubricates moving parts, reduces friction, minimizes wear, regulates engine temperature... it even helps keep the engine clean. That's why it's so ...

The best synthetic oils offer more mileage, keep the engine ... all come down to marketing. At the end of the day, it’s difficult for most vehicle owners to tell the difference between different ...