I have 20 gallons of premixed 87 octane gas in my boat that I put in May of last year. The boat has not been started since then. I put a can of seafoam in the gas at the same time. Since I have an internal fuel tank, pumping all of it out and disposing of it properly is a big pain. Would it be such a bad idea to take her out to the lake and burn the old fuel up? BTW this is a 1996 88spl that I am dealing with that already has hot start issues.