Quote Originally Posted by felonygtp View Post
The fact is royal purple is garbage oil I've seen more scored bearings and spun bearings when people use it. When it gets hot it turns to tar. Its not much of a problem in our cars cause the motors aren't working as hard as my pull truck or race engine. If you ever lugged the motor for a period of time it would cause problems. Its just overrated synthetic with some purple dye in it and the dye is what causes problems I think.
It's used in a lot of the trucks at work. The dye is broken down and dissolved in the first few hundred miles. If the Air Force goes out of their way to use it at the recommendation of the analysis dept (does analysis on all engine oil, including gasoline, diesel, and jet turbine engines), then I will definitely run it in my car.