I know Bob, he used to be on the Evo site... there was not ONE question ever asked that he couldn't answer. The guy really knows his stuff. It's like the science debate.. you can go over and over numbers, but they will indeed change. I do believe some oils are better, a good synthetic however has always been my choice and I won't name a brand and get into a debate, but I can tell you my oil temps have been cooler and i'm happy with that
