Ethanol is the worst. I only run ethanol free gas in all my equipment, mopeds and motorcycles. If I have to get some with ethanol I will use seafoam or Lucas. Cleaned to many carbs with crap in them from ethanol. Ethanol does bost octane but fuck it, not worth it. Ran e85 in my truck a couple times. Noticed more power but with more fuel consumption. Go to a marina if you live by one. Most gastations are starting to have pure gasoline. It is worth the extra cost. Fuck it if, you live by an airport go grab some 110 low lead. There is a reason why boats and planes don’t run gas with ethanol.
I am a huge gas snob and will never have my mind changed.