04-02-2010, 09:45 AM
Quote:Gogo E85. A flex fuel engine must be able to operate with normal pump gasoline at 87 or 91 octane, so cannot really take full advantage of ethanol in low load conditions, like cruising on the highway.
We have a flexifuel engine in our car. But I actually never used E85 yet.
We only use 95 octane and up here. I think the engine would work on 91.