When filling up.....things to remember

[FRANKIE]

Saw this on the internet...

TIPS ON PUMPING GAS
I don't know what you guys are paying for gasoline.... My line of work is in petroleum for about 31 years now, so here are some tricks to get more of your money's worth for every gallon:
Here at the Kinder Morgan Pipeline where I work in San Jose , CA we deliver about 4 million gallons in a 24-hour period thru the pipeline.. One day is diesel the next day is jet fuel, and gasoline, regular and premium grades. We have 34-storage tanks here with a total capacity of 16,800,000 gallons.

Only buy or fill up your car or truck in the early morning when the ground temperature is still cold. Remember that all service stations have their storage tanks buried below ground. The colder the ground the more dense the gasoline, when it gets warmer gasoline expands, so buying in the afternoon or in the evening....your gallon is not exactly a gallon. In the petroleum business, the specific gravity and the temperature of the gasoline, diesel and jet fuel, ethanol and other petroleum products plays an important role.
A 1-degree rise in temperature is a big deal for this business. But the service stations do not have temperature compensation at the pumps.

When you're filling up do not squeeze the trigger of the nozzle to a fast mode If you look you will see that the trigger has three (3) stages: low, middle, and high. You should be pumping on low mode, thereby minimizing the vapors that are created while you are pumping. All hoses at the pump have a vapor return. If you are pumping on the fast rate, some of the liquid that goes to your tank becomes vapor. Those vapors are being sucked up and back into the underground storage tank so you're getting less worth for your money.

One of the most important tips is to fill up when your gas tank is HALF FULL. The reason for this is the more gas you have in your tank the less air occupying its empty space. Gasoline evaporates faster than you can imagine. Gasoline storage tanks have an internal floating roof. This roof serves as zero clearance between the gas and the atmosphere, so it minimizes the evaporation. Unlike service stations, here where I work, every truck that we load is temperature compensated so that every gallon is actually the exact amount.

Another reminder, if there is a gasoline truck pumping into the storage tanks when you stop to buy gas, DO NOT fill up; most likely the gasoline is being stirred up as the gas is being delivered, and you might pick up some of the dirt that normally settles.

 

[motco]

Thank you Frankie, now I understand why aircraft fuel is measured in lb or kg mass rather than litres or gallons. Here in UK at the moment the price of petrol/gasoline these days varies day to day to an extent that you could save or lose more by choosing a particular day to refuel far more than small changes in S.G. Nonetheless your tips are thought proving and can be very useful, thanks again.

 

[elevensies]

and yet we still blame, brexit, russia/ ukrane, israel/ iran, right wing hoards.. the list of excuses is going up.
the reason we pay more in uk for fuel is 3 taxes on it.

 

[Pond]

I didn't think we have vapour-returns on our hoses in the UK anymore. Only a single hose to a single nozzle. I might be wrong but can't see how any return could happen TBH.

I have noticed that diesel is now almost the same price as petrol now (2p a litre more). It was a LOT more than that for the past few years.

 

[Dxbolton]

And diesel is cheaper to produce as it takes less distilling in the tower!

personally I buy only at motorway services stations, as the higher price means better quality fuel

 

[motco]

And diesel used to be cheaper at the pumps in the mid to late 1990s and before. Gordon Brown declared that diesel was a 'green' fuel based on its lower CO2 emissions, and then everyone wanted diesel cars.

 

[t-tony]

Yeah, a bit like Electric vehicles, until owners have to start paying VED on them.

Tony.