[jcw31]

Understand what you yourself said . In this world a 4 cycle is a 4 cycle weather its a motorcycle or a street cat or a race car or lawn mower.
Your trying to prove yourself to which I have no argument .I dont have a dog in this talk, just stating facts of whats out there.Can you prove to me in which way a racing motorcycle 4 stroke engine is a different than a 4 stroke racing engine ? Doesent it have heads,pistons cam block,crank? Can you also prove the rotella is worse than any other racing oil in an engine.There are also alot of "racing engines" using methanol whats the difference ? Now weather what you said didnt refer to 2 cycles or not I dont care , again a 4 cycle is a 4 cycle .