Ok, I can see some of you guys are really into this oil stuff. I will just run what I want and you can run what you want. I won't poke the beast anymore. @Killer223 has his bases covered on oil dynamics. My machine may never see "extreme conditions" (according to Killer223) to justify Amsoil, but I personally feel better using it just in case. But I stand by my claims to the differences I have noticed in machines. Let's just agree to disagree and leave it at that.😁