I dump old gas in my truck. I swear that if the gas sat more than a month in my 2001 Triumph Bonneville, it ran like crap. I say even quicker than 3 months, let say 6-8 weeks. Unless its stabilized. I would still dump that gas in my truck before running it in a ped. Don't be a retard like Jerry and dump it on the ground, what a dumb fuck!