Ethanol costs more to manufacture and evaporates more quickly. It must be blended with a more expensive, cleaner-burning gasoline. Another competing additive is a blend of alkalytes and aromatics, which are derived from crude oil. They are slightly less expensive than ethanol but pose more of an environmental risk. Crude oil must be pumped or imported.
Corn is a renewable resource, grown in quantity every year, and is a boon to the Midwest economy.
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