There is a reason your car will not work with pure ethanol - its engine can't run on ethanol. An analogous situation would be buying an iPhone and expecting it to work on a US network other than AT&T or T-Mobile's. There is no technological reason that the iPhone won't work on T-Mobile's network, it's just that they won't let you.
A better analogy is buying a car, and then being told that you have to use Exxon gasoline.
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There is a reason your car will not work with pure ethanol - its engine can't run on ethanol. An analogous situation would be buying an iPhone and expecting it to work on a US network other than AT&T or T-Mobile's. There is no technological reason that the iPhone won't work on T-Mobile's network, it's just that they won't let you.
A better analogy is buying a car, and then being told that you have to use Exxon gasoline.