I did not know this would digress into a fuel conversation as I stated in one of my first post.I run one hundred octane sunoco ethanol free. When on a longer ride I run the best available. When I put the bike away I siphon the shit California gas out and put some good stuff in. I get my fuel down the street from a gas station. They sell a lot of race fuel so it is fairly fresh. 10 bucks a gallon