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Originally Posted by camaro chris
except that there really are no major advantages to ethanol. its more expensive. it takes alot of energy to produce and cars get worse fuel milage from it. its plus sides are that it gives more power and is cleaner. i say ditch it and go with biodiesel only.
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We can't make enough to power the whole country. Same for ethanol. Butanol is still a ways off from being available in large enough quantities to be useful, but between the three of them a dent can be made in our consumption of oil. That gives time for hydrogen infrastructure to mature and once the oil starts to dry up, we'll be able to phase it out. There are two hydrogen options: fuel cells and electric motors, and hydrogen combustion. Ford and BMW both developed working hydrogen ICEs, but they suffer from substantial power loss. Can hydrogen be blended with another fuel for this purpose? One big advantage to blending ethanol into gasoline (even at E10 levels) is that to achieve the same octane rating you need a lower octane of gasoline (since the ethanol has a 115 rating by itself). This allows for some savings on the refining side, and potentially less waste.