I've run 113 for about 1 1/2 years (its been around a while). I like it ok,it might be worth .02-.05.It smells funky!You dont want it to let it set in your fuel cell much over about a week. I just drain my fuel system if I'm not racing every week. Be sure your drum is well sealed,dont let it set in your fuel jugs for long. Some of its additives will evalorate and it may not peform properly.I havent seen any corrision due to 113. The Q16 (also oxygenaded)is a bit more unstable but worth more power in some applications.There is more reading at VPs website or dragraceresults.com