There is no way I will ever run ethonol in my car for my transportation. I build small engines for a living for racing applications, and we use alcohol for racing. there are some things about alcohol that the media refuses to tell the public. Most of the problems are fixed by the big three (as far as your car goes)--but there is one little problem that none of you guys have heard of.
Alcohol has a property called 'hygroscopic". That means alcohol attracts moisture and can absorbe it right out of the atmosphere. It has the ability to absorbe enough water past the point of being able to burn. The fuel is more sorrosive than gas, releases about 1/2 the engiergy per volume than gas does (that is why it is less efficient--but the 15% gas helps--you need to burn more to get the same power), it will also not start in cold weather (again, why 15% gas is in there)------and it is very very important to always store it in sealed containers. In sealed containers, it has a good shelf life, but not selaed, it will absorbe water from the atmosphere. Now, you can seal a storage tank at the still, you can seal the tanker truck. You may even be able to seal the gas tanks at the station, and may be the gas in your car tank (good luck)--but how are you going to seal your engine block?
Go ahead--run it for 5 years and let us know if you make the 100,000 mile mark without major engine repairs here in the USA with a wide varying climate. Please believe the greens, who have never run it or have any exp with it, so you can pay much more to keep a car running so they will feel good about themselfs for ---NOT TELLING YOU THE FACTS!!!
Yea Yea--they run it in Brazil, and have been for almost two decades. But they are on the equator, with a much smaller demand (they use sugar beats also). I met a citizan of Brazil at a race a month or so ago (a international motocross race in Maryland), so I asked him about how well the fuel was working for them. Now keep in mind that this guy is about 25, and all he knew was ethonol (unlike us). he said it works good. Then I asked him if everybody is getting over 100,000 miles from theri engines---and he did not answer. He just shrugged his shoulders and seemed to think 100,000 miles is long engine life.