Originally Posted by
sandm
the ethanol content in gas currently(10%) is not enough to eat through the components of your fuel system. there are thousands of vehicles and small machinery operating with ethanol fuel in them prior to ethanol based fuel being sold that have been running for years with no issues. now if you missed the signs and ended up putting e-85 in the machine, that will, over the long haul, cause some parts of a fuel system not designed for that fuel to degrade and start leaking. I know lots of guys with turbo'ed cars that swap out part of the fuel systems and change the computer mapping to run e-85 as it's got a much higher octane rating.
now what ethanol is known for is having a lower boiling point so it vapor locks easier and separates much quicker into fuel and water within the tank. possibly your polaris had this happen?