From what was said above you can see there is NO advantage to E-85 UNLESS it is a performance situation or you just want to be green.
E85 is actually way less "green" than gasoline. Way more Fossil fuel is burned making E85 than gasoline and land that could be used to feed people is subsidized by our grandkids to make shallow people who believe every fake news story they watch on the mainstream media believe they are somehow, someway saving the planet by using it (because a corn state government, peer review study from 25 years ago said so).
Corn alcohol isn't and never will be "green", unless its tinted green... and I'm from Nebraska.