haha no no you are thinking e85, i meant ethanol as in e10 which is available as the mid grade fuel around where we live (89 octane) as opposed to regular unleaded (87 octane) which contains no ethanol most places. Its been my experience that the non ethanol fuel is cheaper per mile to run which is very important to someone that commutes 44 miles each way 5 days a week.

The reason I brought it up was that alchohol fuel tends to cleanse ones fuel system and possibley knock some garbage loose in the tank that could be stuck in the fuel filter. Also if you take a car that has not run ethanol fuel recently at put a full tank of it in the engine does tend to run very strangely until the computer picks up the slack of needing more fuel because of the reasons you mentioned of alchohol taking more to achieve the same stoichiometric effiency.

'97 Dodge Avenger
'94 Eale Talon AWD
'91 Saab 9000