but again in all honesty, if I could say it I did but I do not have UOA's or VOA's to back it up, anyways it won't matter yo you much because you will not find this in USA....so when comparing low priced Synthetics...in my humble opinion PETRO-CANADA SUPREME SYNTHETIC are THE BEST!
If you're basing the decision on UOAs, I'd give a very slight edge to the PP, but not by much. I'd make the decision based up purchase price; they are both that excellent.
Now if you're talking sales hype, I believe the edge has to go to the new Edge; Castrol Edge is claiming 8x better than M1.
Geezzus. I am really supposed to believe that some oil is literally EIGHT TIMES better at wear protection, for roughly the same money? Please stop the insanity ...