Join Date: Sep 2002
Location: Des Plaines, Illinois
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With only a quick scan of the article, yes what they state is likely correct. However, while it is one way to take advantage of the customers, there is nothing wrong with it. When purchasing gasoline at the pump, one is paying for the volume of gasoline. One gallon at 6 AM may not have the same energy as one gallon at 3 PM but you are still purchasing one gallon of fuel.
This is similar to the time when they change from summer fuel specifications to winter specifications. For winter fuel, more butane is blended into the fuel to help cold starts. However if it happens to get warm in January, then that butane flashes off when you remove the filler cap.
Since we pay for gas when it is purchased, a gallon is a gallon. What it actually is when we use it depends on nature. But we have not found a way to control that yet.