Hey guys the truth of the matter on ethanol as boat fuel is a matter of how long you let it sit. Before my Sea Dory I owned a 13 ft center consol Boston Whaler with a 50 Honda, I only ran ethanol for two years with no problem. I never let a tank sit for more than two weeks. Each year I changed my fuel filter as well. Here in central Fl its $2.00 ethanol versis $4.00 marine and that sure as hell adds up. A friend of mine who races boats got me to change my mind on this when he took me out and I offered to pay for his fuel. He said Cliff no problem I'm running ethanol and its no problem because I do not leave fuel in this boat. He is far more critical than any of us on this subject, his boat was like a space craft.
With a 200 Johnson we got up to 90mph, scared the hell out of me, all of his controls were on the stearing weel. So I'm just sharing a view from lifes experiences, you know you could get that fuel additive if you needed to let it sit, I do that with my lawn tractor fuel.