A few sessions ago, the TX Legislature had a bill introduced to eliminate ethanol from gasoline. As much as the car people wanted it to pass, it did not make it. Reason? A financial report that stated such a ban would cost the state money. We know that it takes more E10/mile than E0, so fewer gallons of gasoline sold, which then means less "gas tax" at the local level. Millions of dollars/year in lost state revenue with the ban on ethanol'd gasoline. So, in that orientation, the proposed legislation did not get very far past the "talking stage", unfortunately.
"Gas tax" equated to "Road Tax" to repair/rebuild/build roads.
So, the chemical means of counter-acting ethanol in gasoline seems to be all we have, other than the more expensive E0, where available, in an octane we can use.
CBODY67