Petrol Prices UP and UP – This might help
This came from the States and I have anglicised it!
This is a departure from the usual contact but with the price of petrol still on the up, I thought this relitavly easy tip might be usefull.
I don't know what you guys are paying for petrol.... but here in Suffolk we are paying between £1:32 & £1:45 a litre.
The following are tips from a guy who works in the industry delivering petrol to fore courts, and these are his suggestions. I am unable to correctly reference or acknowledge this person as there were no personal details on the email I received with this information.
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 denser the petrol, when it gets warmer petrol expands. So buying in the afternoon or in the evening, you are not exactly getting a full litre.. In the petroleum business, the specific gravity and the temperature of the petrol, 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. And guess who pays for this?
The next part is specific to American petrol pumps but the advice is sound fill your tank slowly. 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 vapours that are created while you are pumping. All hoses at the pump have a vapours return. If you are pumping on the fast rate, some of the liquid that goes to your tank becomes vapour. Those vapours 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 petrol you have in your tank the less air occupying its empty space. Petrol evaporates faster than you can imagine. Petrol 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 litre is actually the exact amount.
Another reminder, if there is a petrol truck pumping into the storage tanks when you stop to buy petrol, DO NOT fill up. The reason is, most likely the petrol is being stirred up as the petrol is being delivered, and you might pick up some of the dirt that normally settles on the bottom.
I hope this tip may help you save just a little money at the pumps, please feel free to pass it on to colleagues .
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