The only ethanol related problem I've experienced since ~2007, when ethanol was mandated by the Feds for metro Atlanta, was when it stretched out the diaphragm of the original 1956 fuel pump in my Cadillac. That happened 2 months after introduction of corn juice.
Since then, all new parts for my vehicles seem to have been manufactured with ethanol compliant rubber. No other vehicles have suffered ethanol problems and they virtually all use it, all the time. It's quite difficult to find non ethanol gas around here.
