I know its a totally diffrent car but it has alot of e85 information regardless
The E85 Army Thread - NASIOC
Ive been running E85 for awhile now. AWESOME cleaning propertys (switch out fuel filter like 4 times if your running it in an older car). Great octane!! I try to always get it from the same stations due the fluctuation of octanes at different stations (not enough to really fuck to much shit up but still a good habit). And the fact that you can push the tune a shit tune harder with E85. Just dont run to rich with it.......get tuned professionally if running E85.
Idk bout 240s but in wrx's the only thing that would fail due to e85 is the oem fuel pump seals and the oem injector o-rings.