I haven't done the research that you have but at this time, I don't think it is true that all gas sold in the US contains ethanol. Around my area, that seems to be true but in my travels, I see stations that boldly advertise some non-ethanol gas. I was in Youngstown, OH a couple weeks ago and stopped for gas at a station just of Interstate 80. They had huge banners advertising their premium gas was ethanol free. Not sure but I THINK it was a Sunoco station.