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how to save a few quid on petrol!

1K views 3 replies 3 participants last post by  Tifa 
#1 ·
With petrol selling for over a £ per litre filling ones petrol tank is fast becoming a major financial transaction. Here are a few tips that in the long run can save you quite a bit of money. These tips also apply to purchasing petrol or diesel for your car.


Only buy or fill up your bike in the early morning when the ground temperature is still cold. Remember that almost all petrol stations have their storage tanks buried below ground. The colder the ground the more dense the petrol, when it gets warmer petrol expands, so buying in the afternoon or in the evening....your litre is not exactly a 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


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. In slow mode you should be pumping on low speed, thereby minimizing the vapours that are created while you are pumping. All hoses at the pump have a vapour return. If you are pumping on the fast rate, some of the liquid that goes to your tank becomes vapour. Those vaporus 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 petrol 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 petrol and the atmosphere, so it minimizes the evaporation. Unlike service stations, every lorry is temperature compensated so that every gallon is actually the exact amount.

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