I've been facilitating for a large organization, so I have little energy. So here's a picture I took a while back of a gasoline pump. Exciting, no?
This device dispenses motor fuel by volume measured in gallons. It does not adjust the volume for variations in the temperature of the fuel. The temperature of motor fuel affects the energy content of each gallon dispensed.
Have you ever seen this notice? Did it ever occur to you that the pump might lie about the volume for any reason, temperature or no?