does anyone here know if race fuel "goes bad" ??? i had a bit of an "issue" with my apex last season around feb, and as a result didnt end up getting the chance to go out again sledding for the rest of the year, so the 45 gallon drum of sunoco supreme (which is the equivalent of a fuel between C12 and C16) just kinda sat in the shop......does it go bad, or anything like that, if so is there an additive to hype it up again......