Have 32 year old BMW Boxer. Runs great to perfect on ANY 20W50, with or without moly. That being said, after many years of Castrol GTX or Syn I now only use AMSoil V-T 20W50 and it's never run better. I'm flat floored by how smooth, quiet, cooler and lively this oil is compared to the Syntec (auto oil) I was using. When I try one of these Mobil 1oils in my bike it will be the V-Twin version only. 19.9 looks interesting and Redline league.
Correct me if I'm wrong, but Amsoil has no moly.
Correct me if I'm wrong, but Amsoil has no moly.