Everyone with an ICE should be using Ethanol!!!
All Electronic Fuel Injected cars can currently run on 50% Ethanol. Not only that, it will clean up the fuel tank, fuel lines, and engine. It could allow your engine to extend the life by up to 3 times. It will also increase your octane level, as Ethanol is 105 --- no longer need Premium Gas, just get half tank of regular, half tank of Ethanol.
The only difference between a Flex Fuel and Non-Flex Fuel is the computing capacity of the computer, would cost the auto maker an additional $50 or so.
If you decide to try this, start with 1 gal of Ethanol for the next fill-up. Then 2 gal, then 3 gal, etc. until you are at 50/50. This way the ethanol has time to clean your fuel system gradually and not clog up your fuel filter.
I have done this on 4 vehicles so far, even converted the Toyota Camry that my daughter now uses so it can run on 100% alcohol.
Prior to using ethanol, I started by using used veg-oil for my Mercedes diesel that I collected from restrauants. I did this from 2006 until this year when I sold my last Benz and got the Leaf. Now I am loving just plugging it in at night, and no more veg-oil spills to clean up.