Royal Purple calls out AmsOil

MOA ftw. Whats your cost on it? I dont get much of a break at the stealership

i’ve tried both amsoil and royal purple in my 954rr and amsoil seems to last and not break down as fast in my opinion.

Is that a visual or did you have a anaylsis done on them.

I put in royal purple and started burning out farther in third.