Originally Posted by enginjoe
The gunk is a known problem that comes from certain supplies of E85. We don't see that here in AZ. There are various theories like old fuel tanks in gas stations supplying E85 or whatever. I've never seen it tracked down to a known cause.
Maybe it is a climate issue, maybe a dry cold climate and the higher gel point of e85 will direct/indirectly relate to the cause of the issue? I know it is rampant here in colorado with e85 tuned vehicles.
I know the vw gti tsi 2.0T guys are also having issues with e85