I've been working on cars and bikes for my entire adult life. While I consider myself pretty knowledgable, but by far I don't know everything, this just doesn't make much sense to me and never did. What the hell is the big difference between motor oil for cars and motorcycles? I don't see any difference at all, though obviously I can't see what is added to the mix. What makes mc oil so much greater that synthetic brands to justify costing up to 4 times as much as Pennzoil Platinum or Mobil 1!!?? The conventional petroleum oils are just as bad in comparison, 2 to 3 times as expensive. I was at a local shop the other day picking up my new front tire after it got mounted and balanced. He had this stuff, I cannot remember the brand, that was $70/gallon!! They run Mobil 1 in NASCAR stockers and they run up to 9000 rpm and being a fan, I haven't heard of a rash of lubrication related engine failures in any make engine for years. I bought a gallon of M1 for $26 at Wally World yesterday. I ran Amzoil in the Yamaha touring bike I had back some years and it ran just fine on it for many miles and smiles. I'm not cheap, guys, by any means. Still, $70/gallon for motor oil? Come on!!