This something that is hard to get through to some customer and techs that this can be the case when they blame all fuel related problems on ethanol here. And it also leaves residues from all the other additives behind too the US EPA requires.
My '79 Malibu use to clog up the fuel all the time using unlead plus fuel. There was a chalky additive in it. When I went to regular unlead the changing of the fuel filter on the side of road went away.