E15 Gas Introduced, Car Mfgs Warn Not To Use It

Indy engines use Methanol, not Ethanol.
I've forgotten all the heat content etc, a long time ago.
Ethanol is not a scientific solution, for anything with our engines.
The Corn Farmers started an effort to get Ethanol into our fuel way back in the fifties. It was flop. It wasn't about conservation or pollution then nor is it now.
I wasn't aware of the fifties efforts until fairly recently. A Relative sen me some photos, of signs at gas stations advertising it.
Never saw it around here.