i must have missed the memo. what are the dangers exactly?
The only danger is if you are an oil company.
I've run E50 (a mix of E85 and regualr unleaded) in my 2003 Expedition for thousands of miles. It's not an E-85 vehical. You can get to about E55 before you throw a check engine light.
1989 LX 5.0 - 333 Mexican block, Eagle 4340 neutral3.25" crank, Probe SRS 9cc dome .040 psitons AFR 185 Comp heads, FTI HR cam 239/244 613/613, Edelbrock Victor 5.0, 90mm TB, BBK 1 3/4, C4 and 4500 Circle D converter, 4.10 gears
2012 GT/CS 5.0 - Yellow Blaze Tri-Coat metalic, A6, HID.