In FutureCar they said you could convert your car to run ethanol for 100 dollars. Great, how?

Some 30% larger fuel injectors, and a higher capacity fuel pump (if you have a high performance car) are about all you need if you want to make a permanent switch to E-85.

If you want to be able to switch back and forth, 15% larger injectors will give most modern cars enough extra fuel capacity... but the car may hesitate a bit when you transition from one fuel to the other until the self learning capabilities of the engine computer adjust for the new fuel mix.

Keith