Gasoline engines: Alert - MTBE to Ethanol changeover
 

There are great 'problems' showing up due to the 'changeover' of
gasoline addives - MTBE to Ethanol: Fiberglass fuel tanks dissolving
and leaking, harmful destructive deposits formed inside engines, etc.

for more info:
http://www.moyermarine.com/forums/at...ttachmentid=42
or BOATUS.com website.