It'll last a year in sealed container and a couple of weeks in your tanks . Just guessing here though .
-beerjet-
Omar Pretty sure thats what Busby told me when I ask him last year too I have about 50 gallons in sealed 5 gallon containers that had a B'day And the Big boat has about 40 gallons of 50/50 and I'll be dipped in sh*t if I'm gonna toss it

at 6 bucks a gallon I'll either "step on it' with new or maybe put it in the Miata (probably damage the cat?) Oh well ! Tom
"I love the smell of Napalm (race gas

) in the morning ,smells like victory" (Robert Duvall)