In article ,
says...

Don't think this guy is impressed with a report by the Department of
Energy that is pushing to increase the percent of ethanol in gasoline:

http://www.youtube.com/watch?v=nVs-Yc5FomM

E15 is a bad idea to increase "renewable" fuel and probably won't fly.
But E10 came about because the Clean Air Act demanded that gas be
oxygenated to lessen air pollution. MTBE was used as an oxygenator, but
was found to pollute ground water, so E10 came into use. Of course that
was also influenced by lobbying, but people seem to forget the primary
purpose of E10 is to provide oxygenated fuel and cleaner air.
It's been around for decades, and Mercury Marine has no issues with it.
The engine failure in the above YT vid had nothing to do with E10, and
if fuel line particles hosed an injector (the actual lean-run cause) it
was most likely the owner screwed it by using cheap-ass fuel hose that
was not in spec for fuel. Certainly wasn't fuel hose supplied by
Mercury. Fuel hoses have been E10 compatible for about 30 years now.
Likewise, E10 probably played no part in Harry's fuel bowl corrosion,
despite his mower mechanics voodoo thinking. Water has intruded into
fuel systems and caused corrosion long before E10. Fuel care isn't a
new subject.
This is an excellent fuel care and E10 explanation from Mercury experts,
debunking E10 myths. But it's long, and full of detail, so be
forewarned.
http://www.mercurymarine.com/service...t/storage-and-
maintenance/faqs/outboards/?category=ethanol#FuelLines

Scroll down a bit and play the vid. Sound gets better after a few
minutes. You might just start at about the 4 minute point, and skip the
into.