Any automobile built since the late 1970s can run E10 unleaded with no problems whatsoever. Remember, scienticians say it (E100 or pure ethanol) may promote drying out the seals in your fuel system, not that it will. E85 is still 15% gasoline, which helps keep the seals lubricated.

Why can't it be good? It is renewable, helps clean the air and your engine, promotes less oil use, supports local farmers and is often mandated in areas to reduce smog and greenhouse gas emissions (as it is here in Chicago). I'd much rather use ethanol to reduce emissions that MTBE and poision the groundwater.

I also highly doubt the rest of your boats' engine manuals have much crossover to your 200's engine. Reference the original car owner's manual. http://www.e10unleaded.com/ quotes Volvo as saying "Volvo allows the use of... oxygenated fuels. Fuels containing up to 10% ethanol by volume may be used..."

I've run E10 unleaded in my car for years with zero problems. I'm on my third tank of E10 & E85 mix and I'm proud of the choices I'm making. The only true way to reduce our dependence on foreign oil and help the environment is to use less oil - no matter if you drive less, drive a more fuel efficient car or use a non-petroleum fuel. I'm more than willing to use ethanol in higher proportions than 10% in my car because I believe in helping the environment, helping our country get stronger from within and helping my local farmers.