I have over 5,000 miles on my Versys now and every since I've had the bike I've always put in the highest octane gas that is at the pump. At my last fill up I threw in a half a bottle of STP Octane Booster just to see if it would make a difference. I was on the highway and to me it seemed like it really made a difference. Maybe it was just in my head but it seemed to run like a bat out of hell. I also haven't heard that popping noise I get on deceleration some times. Has anybody tried an octane booster and is it detrimental to your engine? I always run 93 octane and after putting in that octane booster it felt like I was running on 100 octane or something.