No meth for me. I do not trust meth and will never use meth. Straight race gas only.
I thought race gas = C16?
100octane isnt that great, though it is nice to add to a 91 tune to ensure you keep your motor happy if you are going to be overly abusing your car. Ill usually fill up half a tank with it if im gonna be doing aggressive mountain driving.
dont fear the meth. then again DSM's can set their CEL to go off when knock retard hits 3* or more (or whatever we set it at) so if we are always at 0 knock with 91+meth and all of a sudden that CEL goes off, you know to let off because something is wrong.