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  • petrol advice

    PETROL TIPS - info

    With Petrol expected to reach £2 per litre by end of 2011 these tips might come in handy.


    TIPS ON PUMPING PETROL


    I don't know what you guys are paying for petrol.... I am paying up to £1.35

    to £1.50 per litre.

    Tips from somebody in the Petrol Industry

    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 Litre:


    Here at the Shell Pipeline where I work, we deliver about 4 million litres in

    a 24-hour period .. One day is diesel the next day is jet fuel, and petrol, regular and premium grades.

    We have 34-storage tanks here with a total capacity of 16,800,000 Litres.


    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 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.

    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 vapour 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 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, 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; 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.


  • #2
    Re: petrol advice

    Buying your petrol when it is at a lower temperature can have a theoretical benefit. When you do the standard calculations though the expansion works out at around 0.001% / deg C difference between storage tank and ambient temps.
    I wonder what the calibration error is on the average fuel pump, I guess it's of the same order so any benefit can be easily negated.

    Unfortunately for us, driving open cockpit, we are our own worst enemies. Wind turbulence is our undoing, and by the nature of the cars we are unlikely to change.

    There are many more reliable and proven ways of reducing fuel consumtion, used by hypermilers, but some are verging on the illegal and downright dangerous.

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    • #3
      Re: petrol advice

      e-mail spam, been around for years...

      http://www.snopes.com/inboxer/household/gastips.asp

      Comment


      • #4
        Re: petrol advice

        An interesting scientific twist to this is that there is an increaced use of ground source heat pumps for domestic heating/cooling. This technologies relies on the stability of temperatures at depths of 3m and below.

        Comment

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