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I remember buying tanker loads of N2 fuel from the Murphy refinery in Superior, WI and always coming up short at the end of the month inventory vs. sales. When Amoco was moving fuel from Mandan to Superior, I never saw this problem. The Murphy (now Calumet) fuel has always been “hot” and subject to shrink as it cooled.

The loss in volume would be borne by the retailer in this case. It probably is significant.

This discussion is about the time of day you buy.

If you bought fuel right after it is delivered, temperature could effect it.

After a few hours it would be at the temperature of the tank. — So just watch when it is delivered.

I remember buying tanker loads of N2 fuel from the Murphy refinery in Superior, WI and always coming up short at the end of the month inventory vs. sales. When Amoco was moving fuel from Mandan to Superior, I never saw this problem. The Murphy (now Calumet) fuel has always been “hot” and subject to shrink as it cooled.

In Idaho, and many other states, fuel is distributed from a rack system into truck-tankers from central storage tanks. The fuel is always declared at gross value, which in the winter will be less than the net (due to denser fuel) and higher than net in the summer (fuel will be less dense). It averages out over time in most areas. You'll get more fuel than you pay for in winter, and less in summer. The difference is minor, even at the tanker level. What you get for your car would be, depending on consumption, negligible, at best. Altitude also is a factor. Gross gallons are the equivalent to 60 degrees at sea level (IIRC, it's been 10+ years since I stopped working with the industry). Net is the adjustment from there.