They went pretty deep with these cellars, though.
Snopes hedges on this question and says the average effect of timing your daily purchases of fuel would be “small.” But how small? I think we would want to err on the side of too much information to the consumer since the sole purpose of the petrol is to deliver energy to the car.
http://www.snopes.com/inboxer/household/gastips.asp
The temperature of underground storage wouldn't vary by more than a few degrees throughout the day.
The effect on the volume of fuel in a tank would not be measurable. The intake of the pumps is from the bottom of the tank so it would be the coldest part of the tank.
The temperature of underground storage wouldn't vary by more than a few degrees throughout the day.
The effect on the volume of fuel in a tank would not be measurable. The intake of the pumps is from the bottom of the tank so it would be the coldest part of the tank.