Ethanol only needs one thing to make it better - avoiding.
Ethanol has an affinity for water, which then has a tendency to corrode the daylights out of anything steel it comes in contact with, like gas tanks and fuel lines. It has an appetite for neoprene, rubber and vinyl as in gas lines and neoprene tipped needles in the carb. Viton tips fair better, but I wouldn't use ethanol/gas for anything except late model injected engines designed to use it. I still fill up my later cars with non-ethanol occasionally to clean the injectors (performance and mileage increase is noticeable).
Ever wonder why the vinyl gas lines on a weedeater last about a year when using ethanol ? Ever looked inside one of the carbs on an ethanol powered small engine after a year or two ? Usually not good. Metal bins at our local collection center are always pretty full of weed eaters and lawnmowers that look new and don't start, when a new fuel filter, gas lines and spark plug will most times resurrect them.
The ethanol as an additive was originally intended to reduce the cost of gasoline, due to the amount of grain grown and wasted in the U.S. annually. More often than not, Brazil was used as an example of how cheap ethanol was as a fuel (while burning down the rainforests to plant more grain). We'd be better off using shale resources to help our newfound internal oil independence, and ship the corn to Lynchburg, TN for more useful recreational uses. Leave some for the livestock, too -
Just my opinion(s) - lol.
Regards,
Steve