I won't speak for him but I will say what I know. A dude who goes to showzone has the black wrx (you dorchester normals will know who I am referring to) he uses E85, iirc what he said he would do is put in a full tank of 93 at least once a month.....
And yellow audi s4 dude I think all the time runs E85 with out anything added afaik.
edit: my friend has an srt4 neon he ran E85 all the time with nothing added. He was an instructor out at the nuke school, left for Cali a while back......but his car ran flawless aside from traction....
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