I was born/raised in Audrain co. and I know some people in the biofuel business. I can tell you that the biofuel from MidAmerica BF in Mexico, Mo. and POET BF in Laddonia is sent by rail car directly to the major refineries, it is not sent to fuel distribution/storage facilities. So no "blending" of fuel takes place at storage/distribution centers. They may mix additives into the fuel at the time it is being loaded into semi-tankers, but I doubt they are doing any alcohol blending (or removing) at the distribution centers.
I don't know for 100% certainty but I'm reasonably sure that there is no such thing as alcohol-free fuel at any gas station in the U.S.
As I said before, I have tested fuel from A LOT of boats, all from guys (from all over the Midwest/mid-south) that swear they ONLY buy "non-ethanol fuel", and it ALWAYS tests 10% alcohol regardless of where it came from.
And in spite of all the propaganda and popular belief.... there is nothing at all wrong with that. The only issue I ever see with fuel is when it is overly aged. 4 months old and I can tell something isn't right when adjusting fuel mixture screws on carbureted engines. Add fresh 10% and things straighten right up and engines respond to 1/4 turns of the mixture jets like they are supposed to. Every single time.
Oh and while we're discussing this let me throw this lil'tidbit at ya....All you guys with "water separating fuel filters" are wasting your time/money. That filter is only gonna hold about 1/4 cup of water before it starts passing water right on to the engine. Add 1/4 cup of water to one tank of fuel and you'll never even know it....and neither will your motor, whether you have a W/S filter or not. So unless you change that filter every single tank of fuel....then WTF even bother? š
So much rediculous FUEL BS going on in everyone's brains! Drives me crazy.
Your fuel needs to be reasonably fresh..... That's all you need to know. All the rest of that crap that is being programmed into your brain is 100% hogwash. You don't need any additives, or stabilizers, or "ring free", or "Sea Foam" or any of that crap. Just fresh 87% fuel.