I agree that RP has proven to be a very good oil. I was just wondering what was the basis for the comment that no one has come close to the performance of Synerlec? Was the comment based on the Falex tester results?
Would you agree that an oil's film strength does matter?
There are other ways than a Falex machine to test film strength as well, as you mentioned. However Synerlec also assists in a better ring seal which results in better compression. Then there is affect on oxidation resistance, it's not just about film strength, it is a multifaceted advantage.
My intent was not to slam other oils either, as there are several worthy competitors that make some excellent oils.
Back to back dyno testing often shows power gains with Royal Purple even against some really excellent other branded synthetic race oils. That certainly does not make those other oils a bad choice.