Ethanol should be freed of all federal mandates of any kind and left 100% to marketplace decisions; no vehicle owners, oil refiners or gas stations should be required to use Ethanol or any other “biofuel”.
As long as ethanol is subsidized they’ll keep using it. They care about their profit margin, and if they can get the ethanol cheap because it’s subsidized they’ll use it.
Another way I could have, perhaps should have, said it - as long as we subsidize ethanol there’s not such thing as a fair marketplace for fuels.