A test done after having E85 sitting in the fuel tank for a year, with a year of use prior to that.
 
http://mr2oc.com/showthre...amp;highlight=e85+fuel
 
no apparent issues.
And that was full E85 too.

It definitely won't hurt your rail or injectors. Well 1 or 2 fillups won't hurt anything, but prolonged use may shorten the pump life, certainly does on 100%, and I'd change the lines & filter anyway, if you decide to use it permanently.
 
Just on that storeage thing, something worth knowing-
if you happen to get water contamination in your tank (bad fuel whatever) if it's enough in volume, the Ethanol can drop out of solution in the 98 and combine with the water..you end up with a layer of Ethanol/H2O on the bottom of your tank. Probably usless info, but if it happens, drain the tank.. I don't think C₂H₆O + H2O would make for a good fuel!.

That was supposed to be a 'reply to message' didn't quite work....

whats this about oxygenating additives?

MuManMost of it in AU comes from 3 domestic plants on the east coast, but it hasn't taken off nation wide just yet. Prior to that biodiesel and fuel ethernol was imported from Europe mostly, I think, so can't really say. E10 has just about replaced 91 unleaded completely, so I'd expect E85 will eventually replace premium fuels also..in time.
I think that might be the case with additatives, I've heard about issues with injector seals and fuel hoses also. AU is a big place, so by the time distribution
gets across the country to the various outlets, you'd expect oxygenating additives would be a requirement.

 
from the thread above

Oxygenating additives are normally added into bulk bio fuels that are imported into a country, or where long distance distribution  and lenghty storage periods are involved, to preserve the quality of the fuel.
I doubt very much that effects east coast production in AU., although WA might find some level of oxygenating agents in their bio fuels when the are released.
That's got what to do with what?..check the date.

explanation..response?