Hi,
I know many of us have spoken of the evils ( and even some say ) benefits of ethanol. Recall the recent Hagerty Magazine two part article regarding this fuel supplementer / additive.
No matter which camp you are in on this issue, I have some data shared by H Lankford and others on the MM site. I personally am in the "less ethanol is better for fuel users that may sit unused for periods of time" camp.
Note that IF you are trying to avoid ethanol, in any percentage, there is a web site that Mr. Lankford has made everyone aware of.

http://www.pure-gas.org

I wish you all the very best of luck with the fuel systems of all of your internal combustion engines. I know that I'll be taking a little drive, with an extra gas can on board, in the near future.

Best regards,
MSH