I have a good source of E85 near me and my wife's 2008 Acadia 3.6L is not a flex fuel branded vehicle. Although, I noticed a few settings within EFIlive in the Acadia OS referring to Ethanol. Is it possible that the vehcile wouid support E85 if the tuning was done right (and assuming the fuel lines are E85 safe)?

Anyone done this?