Pray it stays that way. I approached ethanol with an open mind but it is crap. Here in Texas since it's cheapest way, I wash many parts in fuel but on a humid day the stirring up of it has water appear because of the ethanol in about five minutes. Because of the ethanol it DOES have a good side, any parts fuel cleaned now wash off after perfectly with water without any oldschool oily residue but you have to dry the parts FAST or they rust like lightning. I pretty much use a high pressure blower anyway when done, you absolutely cannot let the parts sit. Even sitting them in ethanol laced fuel and the fuel covering them will layer separate upon hitting air and anything low down in the fluid then corrodes to damage in 24 hours or less. So letting parts sit to soak in it is a mistake.
The stuff has a few good qualities but the bad highly outweigh them. It's transparent as long as the vehicle or tool (say chainsaw) gets used every day but let it sit and then problems begin quick. Anything old school with lots of tank and carb venting it tears up fast. The car evap systems stop a lot of it but once fuel hits a certain point even that can bite. I just pulled a fuel pump module out of one car that sat a year and the brand new fuel pump back then looked like it came out of a 20 year old vehicle, and that was after in the past doing the same one year sit before the old pump went bad due to other things and zero issues doing it. You could tell where the fuel separated, no corrosion in the higher gasoline only layer but the corrosion went crazy in the ethanol lower layer. I suspect the last fuel batch of having some water already in it, if water gets into the fuel then sits it turns into acids that eat everything. I saw loads of that with farm trucks when I was in parts, the modules just looked like lumps of red stuff when pulled out of them. I drive older cars and one of three sits a lot to be used when needed and now on that one I pay far higher to store it with pure gas only so the car sitting is much safer. Bike the same and the sticking needle issue disappeared as soon as I did it.
It can be some funny stuff, either wrecking parts or doing nothing. For sure the amount of air that gets to it has much to do with that. I used a same big batch of chainsaw premix for 3 years before running it out and no problems with it at all and it wasn't treated with anything. I just made sure it capped back up instantly after use everytime I used some of it.
The law says 10% here but commonly it's over that and up to 20%, the problem being that no one checks the % at all.