ethanol in gas bad for our cars?

I have thought about removing the jokenol by adding water to gas, shaking it and then draining off the resulting jokenol/water, but I prefer buying my gas without it in the first place.

Jokenol is 1/3 of the corn "demand".

http://www.commodityonline.com/news/Corn-growing-into-major-commodity-player-41582-3-1.html

The corn market by itself has been as big a trade as almost anything else out there, including crude oil. A lot of it has to do with the ethanol. It’s one third of demand right now. Five years ago, it was next to nothing. I can remember years when 8 or 9 billion bushels was a huge crop and we didn't know how we could get rid of all that. Now we're going to produce 13 billion bushels or more and we're not sure that's enough, which shows you how it has increased.

Everybody should write their congresscritters and senators and demand the end of jokenol and corn subsidies.