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Here's the thing:

Ethanol has less energy per gallon than gasoline and diesel, so for a given power output an engine will use more ethanol than it would have used diesel or gasoline. Miles per gallon will be poorer.

But that's not the whole story.

Ethanol - being considered more eco-friendly - is often a lot less expensive than diesel and gasoline. So even if you're using more of it, the cost-per-mile can be lower than for gasoline or diesel.

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11y ago

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