If it was an E85 only tune i reckon it may have been a bad day! Assuming it run.... Being setup full flex made it so the car could run but it could have been E10 fuel, or 100 octane stuff, i have no idea.... I just got a call from United and they will have the answers on Wednesday, i must admit they have been pretty good to deal with in general, very pro-active which is a pleasant change for most large companies!