E85 is anywhere from 51 to 83 percent ethanol by law.
If you really want to run E85, here is what must be done first.
In order to use E85, you will have to tear apart the motor and replace any internal motor seals with ethanol resistant seals and also replace the fuel line and fuel filter with ethanol resistant ones as well...My buddy tried running that E85 crap in his and a short time later, his plastic fuel filter started to leak, when he touched it, it crumbled like an egg shell due to the ethanol content, no doubt.
The reason for all of this is because 2 stroke engines have an aversion to ethanol...it will eat out all the engine seals and turn the fuel lines and external fuel filter brittle and hard.
(These China Girl engines also do not need high octane fuel because they are not high compression engines...87 octane is perfect for them.)
Have fun...lol...DAMIEN