I was just down getting coffee for the wife and guests from the local
coffee shop and there was a driver there from a local gas delivery
company. We got to chatting while I was waiting for the coffee and
pastry order and found this out.

Apparently, ethanol is heavier than gasoline. In normal conditions, a
gasoline delivery truck carries 13,200 gallons of gasoline.

With ethanol, they can only deliver 11,000 gallons at a time because
of the extra weight.