Eli5 Ethanol added to gasoline

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Almost every station I go to has ethanol (up to 10%) added to gas. For a long time I had the option in my area to buy non ethanol gas but now it’s harder to find.

If a gallon of ethanol gets less mileage per volume than gasoline, then how is it better for the environment if I have to fill that much sooner on gas because the ethanol component lowers my tank range?

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69 Answers

Anonymous 0 Comments

Theres benefits to ethanol besides mpg. Its an excellent octane boosters and makes engines run cooler, which creates more power.

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