I have used Sta-Bil for over 20 years in ethanol-laden gas and and had good results. I used it in Lawn mowers and snow blowers in Michigan - each item sat for 4-5 months EVERY year but would start right away with Sta-Bil in it. All gasoline was up to 10% ethanol. My dad never learned, he'd have awful times trying to start small engines every year, but not me.

I do not store my Crossfire, storing a vehicle, to me, is a bad idea. What I do is add Sta-Bil in the fall and then start the car at least every three weeks and let it run until it gets to operating temperature, I also cycle the top while I am at it. IF there is no salt on the roads, I will drive it around the block or so.

I also, now that I live in rural America, run 100% premium gas in the Crossfire - our premium here is ethanol free, which is as important to me as it's octane rating - for the reasons others have discussed: ethanol in fuel is not good for some components of the fuel system.