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Originally Posted by LoBlo
Here's my opinion: Ethanol!   |
Ethanol fuel is, at best, an intermediate step, and at worst, a poor substitute. The amount of energy used in the conversion process is roughly equal to the amount of petrolium-based fuel replaced in the final blend, so you are still breaking even. This is somewhat variable depending on what source you are using. Currently, the United States' ethanol products are maufactured using corn, which is the among most innefficient ethanol blends. Of course, it is used by the United States because of the abundance of domestic corn.
Our own Neal Stevens is a hydrocarbons analyst, and is thus an expert on the subject. If I have left something out, he will correct me.