On gasoline vs ethanol, I had/have 2 Mercs (90 and 115 hp) of 2002 vintage. One I ran for 10 years on ethanol and one I bought last year that had been run on gasoline. The black hoses on the engine proper had started breaking down and generating little black rubber particles on the ethanol engine whereas the newly purchased engine, upon taking a cotton swab and swabbing out the fuel line, plus inspecting the contents of the fuel filter, had none. Fact-fiction, mass hysteria, bad dream, I don't know, just facts as I found them.