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Thread: Does anyone know if this is true?

  1. #1
    Regular Member smiler1982's Avatar
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    confused Does anyone know if this is true?

    I heard a few years ago that when you have finished putting fuel in a car at a petrol station that there is fuel still in the flexible hose... is this true as ever since i heard this i now lift the pipe so the remaining fuel is emptied into my tank instead of the next person having it. Thinking about it there may be a valve in the nozzle or something to stop this from happening? Have i looked like a fool at petrol stations across the land for the past few years?

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    Regular Member Penfold101's Avatar
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    Well, seeing as it would happen to the person before you too, and you're getting his fuel that he paid for, it makes absolutely no difference at all, if it happens to be true.

    So yes, I'd go with the fool option.


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    I'd heard that, well, I'd heard the Scottish did that, so I do tend to give a little flick of the hose to get any dribble that might be there, but not so obvious that I look like a tight git.

  4. #4
    spoons
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    I'd be more concerned that the pump was correctly calibrated and setup for delivering what you pay for in the first place.... how would you know for sure?

    I bet 90% of them aren't set up right.... in their favour!

    If there is a scam, it'll be done

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    Regular Member Big Knox's Avatar
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    Given the location of the trigger you pull I'd say the valve is probably there so all you'd get is what's left in the metal nozzle in front of the valve. I though all men gave it a shake instinctively anyways.


    Sent from my iPhone 4S using Tapatalk

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    Regular Member smiler1982's Avatar
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    Spoons I presumed that an independent body would be in charge of calibrating/resetting etc. If there is no valve on the nozzle end and the person before hasnt done the same i would imagine you would get a fair few ml in the hose?

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    Regular Member m8internet's Avatar
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    It depends on the pump manufacturer; some do, some don't
    The amount, if retained within the hose, will be very small, probably no more than 20ml

    If you want to test it
    Shut off the pump handle and allow the residual fuel to drain from the nozzle
    Now lift the hose and watch the remaining fuel flow out of the nozzle

    There is a valve in the nozzle but it is for cutoff purposes
    Lift the nozzle and view it face on and you will see there is a small hole with a plastic part visible, this is connected to the handle

    As for calibration there are now typically three stages involved, all of which have access to the tolerances
    Primary calibration is by the pump manufacturer
    Secondary is by Trading Standards and/or Customs and Excise (depending on requirement)
    Tertiary is the store and/or third party monitor

    Quite often an incorrect pump is picked up by the third party monitor first, customers being completely unaware of any issue (as it usually still less than the legal minimum tolerance)
    Equally, there can be quite a difference between pumps but even then it is so small it is not worth the hassle

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    Regular Member gtr1000's Avatar
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    Vehicle : Insignia

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    Engine : 140 Ecoflex S/S

    Year : 2013

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    As I don't trust any garage, I always stop at 10lt, do a bit of maths and then carry on.

    Simple, for exapmle if derv is £1.40 a gallon, put 10 litres in and the pump should read £14. If not, stop and go seek garage manager .

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    Regular Member m8internet's Avatar
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    Quote Originally Posted by gtr1000 View Post
    As I don't trust any garage, I always stop at 10lt, do a bit of maths and then carry on.
    Simple, for exapmle if derv is £1.40 a gallon, put 10 litres in and the pump should read £14. If not, stop and go seek garage manager
    You will be having a lot of chats with the manager
    Since when was Derv £1.40 per gallon and if the display reads 10 litres and £14.00 then there is something wrong...

    The next issue is that prices are never that precise
    With Diesel at £1.399 per litre 10 litres should come out at £14.00 as it is rounded up
    The trick is to work out multiples that don't result in rounding, but instead round down
    The first is 19 litres, so try that next time

  10. #10
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    You used too!!! Many years ago I would empty the hoses into a container!(with the garage owners permission) The old pumps would get you about 1/2 cup full, a few cups later and I could lap the field in 'my car'!!! (learning to drive at 15yrs old).

    I am sure 'weights and measures' could tell you when a fuel station was last checked.

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