That's all we have. It sucks. The alcohol they put in has less energy than the gas it displaces, so your mileage and power levels go down. That's only the beginning of the problems though. Alcohol attacks aluminum! All aluminum, carbs, intakes, heads...you name it. Alcohol also has the nasty problem of being hydroscopic, meaning it likes to absorb water from all around it. We all know what water in fuel tank is good for.
Anything you can do to block E85, you should. It costs more to purchase also, because the alcohol is more expensive. That last fun fact, is because they are using FOOD to make the alcohol, your food costs, across the board, not just corn will go up. Ours did.
This was short sighted head in the sand approach to oil shortages. It was argued that is would hurt rather than help, but nobody listened. Now, it has done all the bad things it was foretold to bring, and we are thinking about getting rid of it and just eating the food instead.
What a concept.