I've been running nothing but ethanol free gas in my outboard treated with Seafoam. I've still got about 3 1/2 gals left in the tank and a couple gals in a can that's treated with Seafoam. I doubt very seriously I'll be running that outboard until next spring and my question is...should I drain this gas into my lawn mower and start with fresh gas next spring? Sure would hate to mess up my motor!!! Thanks!!!![]()