Adding Sea Foam to old gasoline [SOLVED]

Hi Dennis. Sea Foam works great as a fuel stabilizer but it must be added when gasoline is fresh in order to be helpful. Anyway, Sea Foam won’t bring your old fuel back to life – the longer you keep old fuel around, the more degraded it becomes. For what it’s worth, I’d use up that can of gas by adding a gallon or two at a time to a car or truck tank and burn through it. The smaller amount of old fuel will blend and disburse evenly with the larger volume of fresh fuel.