by "purple power" I'll assume you meant "royal purple"? I have some killer degreaser/floor cleaner soap thats called purple power. I don't think that would make a very good break in oil, but it will wash away all your assembly lube in short order!

I wouldn't use the purple stuff, I believe it's all synthetic oil, and was not aware that the purple stuff came in a conventional oil?


I did run the purple synthetic in my flat tappet big block after break in on the engine dyno and 1000 street miles, never had a problem.