Do you get more gas if it's cooler out?

Question

I have tried to do some reseach, but have not found anything that gives me good information. My thought is just as other liquids expand as their temperature rises, how much true volume of gas is lost by a measure of degrees?

I live in Las Vegas, and we can have temp swings of 20-30 degrees, so I am wondering if anyone knows of a site that would be able to tell me how much actual gas you lose with variance in temperature.

Thanks in advance for thoughtful answers!

Answer 1

From a quantitative perspective,you get less gasoline in colder temperatures.

Hydrocarbons (gasoline) have a fairly large expansion coefficient.

this would mean you get more fuel in warmer weather.the downside

is an automobile consumes more fuel in warmer weather.

(fellow LasVegan)

Answer 2

It's a good question, and I found a good link that talks about it that's in my sources list

Basically people argue about this endlessly, and it seems like such an easy thing to test

Answer 3

Technically yes. But since the tanks are underground and the ground insulates them from the temp swings, any gas you buy at a station (unless they have above ground tanks) will not change from hot to cold temps.

The rate at which you pump it will change the amount you get for your money though. Gas is a liquid but when shaken and stirred, it becomes a gas and the speed of the pump will create more vapors which get sucked out in the vapor recovery system in modern pumps or will escape to the air if there is no system. You should always pump at the slowest setting you can if you want to get more for your money. You will only save a few pennies worth of gas so your time may be more valuable than that.

The temp changes will only save you a few cents also.