So there is a .50 cent credit for E-85? That makes it $1.99 a gallon. Now you say reg. gas is $1.79. So you pay 20 cents more a gallon and get at least 30% less gas milage with E85. What is the advantage of this?

Sometime tree hugging ain't all it's cracked up to be. E-85 is one of the biggest ripoffs to the American tax payer going. A food source (corn) should NEVER be turned into an energy source.
There is no financial advantage to what I am doing. The only advantage is that the fuel I am using is renewable and produced locally instead of being imported from countries that support terrorism.
The ethanol I use is refined at a local refinery, from corn. Once you have refined corn into ethanol, what is left over is a high-protien, high quality corn meal product that is then used for cattle feed.
If you feed a cow raw corn, it digests the starch and farts out huge quantities of methane gas. If you refine that same corn into ethanol first, and then only feed the byproducts to the cow, it derives the same nutritional benefit without emitting the methane. That energy is instead captured in the ethanol. In other words, a car using E85 is basically running on cow farts.
The company I buy my fuel from (Sequential) is also investing in second-generation cellulosic ethanol refining, which can use any form of biomass including straw, wood pulp or agricultural waste products as feedstocks for ethanol.
A third of our imported petroleum comes from Saudi Arabia, a country in where any human born with a uterus is automatically considered to be the sub-human property of the man who owns her. Women cant vote, cant drive, and cant be out in public without a male escort. I dont want my money going there, and neither does my wife. I'd rather send that money to an American farmer, or the American company that makes his products into fuel.