Royal Purple Oil

[Stoltzee]

Has anyone tried this in their 4 stroke engine.




High Stress Motorcycle Oil.

http://royalpurpleconsumer.com/product-categories/motorcycle/#!max-cycle-motorcycle-engine-oil

 

[butterbean]

I tried royal purple for a bit. It worked ok, but I switched to diesel oil. I'm using Shell Rotella T Triple Protection. As far as I know its working great.