Correct me if I'm wrong (and I really don't know if this is true or not) but I remember hearing, back when I lived in California, that all the gas served in California was mixed with ethanol, which made it cleaner burning, less efficient, and more expensive. There's a gas station down the street from where I usually live where half the pumps serve pure unleaded and the other half serves unleaded mixed with ethanol. The mixed gasoline is cheaper than the pure. IF what I was told about California gas is true, then why is the adulterated gas here cheaper instead of more expensive?