Go to a local car lot and get the scoop from them. After a big push of a few years ago for this type of vehicle you can barely find one. I suspect it is because few people want them. I have only seen one in my area. I think it was a GMC. After talking with them for awhile they said never put a drop of E85 in it.
Let me know if you find one. A guy at work has been looking for one.
My 2007 F150 Supercrew is flex-fuel. Basicially a waste as I have never used E85 nor want to- just happended to be on the lot.