There is always the local airport. 100 leaded is available and the standard gasoline fuel sold. Some places you will have to pull up to the 24 hour self service pump after they are closed. Do not run it in any car with a catalytic converter and be prepared to $4.00 plus per gallon.

Or you can always strip out the craponol in E15 with water injection and filtering prior to filling the tank.

IMO, the best option out there is to convert your fuel system to be ethanol compatible, as chances seem good that ethanol is here to stay.

However, another option out there is you can look for airports that sell "Mogas"... Some aircraft are STC'd to be allowed to fly on unleaded vehicle gas... --As long as it's ethanol free.

Some airports will have ethanol free Mogas pumps available to support this. It's generally cheaper than 100LL when it's available.

Here's a website that lists APs with Mogas...

http://flyunleaded.com/mapusairports.html

Mark,

Sure You Jest.
To make a GMC capable of accommodating E-15 will require replacing everything that fuel and most of the combustion products touch. Think about that one for a while. If I have to do that, we are done.....

Matt,

Not saying I like it, but it is what it is. Making your coach ethanol compatible will help the longevity of your rubber fuel system parts with E10 as well... Rebuilding your carb? Make sure the rebuild kit is Ethanol compatible. Replace a fuel line? Make sure you replace it with barrier hose...

BTW, I agree with you about E85 and how it's subsidized by our taxes... However, as a car enthusiast, E85 is a boon to those of us with performance cars --Particularly ones that are turbocharged. E85 is 105 octane. Where else can you get 105 octane fuel that costs less than regular 87. I've converted one of my cars to be E85 compatible, and am working on setting up another to be dual E85 and normal gas compatible. Paying $9 a gallon for race gas gets old quick...

Mark,

The existing Rochester carburetor cannot be made to be truly E-15 compatible. There problem is far more than just the ethanol compatible internal components, but it then gets to be the diecast body of the device. You may not have seen the problems that we was early in the alcohol in motorfuel days. It is very simply an electrolytic corrosion issue. Zinc is the larger portion of a diecasting alloy and it is very active. That is why galvanizing works. E-15 is hydroscopic enough to pull even more water out of the air and E-15 can hold enough water in solution for the fuel itself to become a corrosive issue. This is what the OEs are fighting right now and why they will not warranty a vehicle earlier than 2012 with fuel system issues. This is a big fight because the emission warranty should still be in effect.

The big problem is that the people that make the rules are all very well off. On one very memorable occasion, I was told in a meeting with these people (EPA Rules committee at that time) that they did not want to consider that any vehicle over five years old should still be in regular use. When I told him that the GAO had determined that a median vehicle was nine years old and had over one hundred thousand miles on it. This information was not well received.

The entire fuel system of my coach has been upgraded to be E-10 tolerant. If I am required to do more, then the budget for the GMC will be blown and when it is cut to the 3k mile per year level, the coach will crease to have any value to me at all. This would only take a small move on the part of the government to accomplish.

Matt