Is it true that you will get more fuel in cold morning than hot afternoon from a fuel station.?

Question

Is it true that you will get more fuel in cold morning than hot afternoon from a fuel station.?

Answer 1

As far as I know no that is not true.It would be true if the fuel wasn't corrected to a certain temperature which as far as I know it is.It is also stored underground which helps alot to make it even. It is also stored in hugh amounts(several 1000 litres) and therefore would take a very long time for it to change temperature(several days or possibly weeks). It might be true for the first few gallons but stuff cools off quickly(tank, hose, pipes, etc.)

Answer 2

Yes the fuel in the cold will be more dense and will give you more molecules of fuel than when it is hot and the molecules are spread apart.

Answer 3

absouloutley, flying j truckstops was sued for heating their fuel expanding it in your tank,,,, an hour or so later in your tank it cools down and you have less fuel,,,, it was a way to get aroun the scle and weight division

Answer 4

Absolutely true.

Answer 5

theoretically you would get slightly more on a cold morning because colder = denser   but, its stored in an underground tank,   the temperature of the ground changes very little,  ever been into a large cave?   same thing,  the temperature difference will be almost nothing

Answer 6

Sorry, but as a gasoline industry worker, I can assure you, this is false.  Gasoline is stored in underground tanks where the temperature rarely varies more than a couple of tenths of a degree in a given WEEK, never mind day or hour.  When you pump gasoline into your vehicle, it was in the ground mere seconds before entering your tank and was metered inside the dispenser ( what we all call the pump, the pumps are actually underground ).  There is simply not enough time for the gasoline to adjust to ambient temperature.  

That being said, summer gasoline is less dense than winter gasoline, so you do get more in the winter, but it's not like you can affect that by buying early or later in the day.  The difference only works out to a few thousandths of a gallon per fillup.  There is a coeffecient of expansion for gasoline that can be calculated and I've done it to resolve disputes for station owners who believe they've been shorted on deliveries.  Even on a 9000 gallon delivery to a station, we're only talking a gallon or two difference, but to a station owner, that can be the difference between making and losing money.

Answer 7

It's absolutely true.

Gasoline becomes denser in colder temperatures. Gas pumps are set to measure the volume of the fuel that you pump and not the density. If gas is denser then you are actually getting more gas in a gallon than you are getting when it is warmer and less dense.

This means that if you fill up your gas tank in the cooler morning temperatures, or in the colder evening hours, that you'll be getting better gas price economy. Filling up your gas tank later in the evening may also help you to avoid the rush of day hours and you will not waste gas idling while waiting for a pump to open up.

Answer 8

Yes.. this a major issue for gas and diesel fuels.

Right now there is are a few class action lawsuit against major truck stops on this issue. The truck stops know that they are selling "Hot Fuel" and they are making money from the trucking companies that is buying this Hot fuel. The fuel generates heat when it is made. It is then trucked to the local gas station or truck stop and put in the tank underground.

Most people think that the earth around the tanks will cool the fuel, but that is not true. The underground fuel tanks are insulated by the earth around the tanks. Which holds in the heat.

The fuel cost is a major factor in how much a company charges for a shipment of goods. When they are "cheated" on how much fuel the are purchasing the cost will be carried on to the consumer (you and I).

If you or anyone else wants to do more research on this major issue I have given you a few websites to research. You can also do a Google search on "Hot Fuel"

http://www.consumeraffairs.com/news04/20...

http://www.iht.com/articles/ap/2007/06/1...

http://blogs.abcnews.com/theblotter/2006...

Answer 9

no it is NOT true. the tanks are buried in the ground at a point where the mean temperature is 55 degrees year round. that stabilizes the gas in the tank at that temperature. the only way you would get more fuel on a cold morning is if the tanks were above ground tanks where the weather would have an effect.