IMHO, the main reason you had such a bad experience is because you mixed MTBE with E-10 fuel. Yes, E-10 does do all the things alluded to here but one CANNOT MIX LARGE QTYS OF E-10 w/ MTBE. End of story.
We have been dealing w/ E-10 fuel for years in the N.E. and I'm sure else where across the...