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Thread: diesel pump freezing

  1. #1
    Full Member neverlandandy's Avatar
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    Vehicle : Insignia Elite Nav

    Trim : Elite

    Engine : 2.0 cdti

    Year : 2012

    Mileage : 9k

    Default diesel pump freezing

    went out to the car this morning at 10am and it was minus 10.5 and the car had sat still for 18 hours in this sort of tempreature

    turned the ignition on on heard what was like a groaning coming from the back and the car didn't start turned the ignition on and off a few times and heard the same noise so i decided just to try and start the car again after it turning over a few times it fired up and i could still hear a bit of a groan coming from the rear but that stopped after about 30 seconds

    i was just wondering if the fuel pump had started to freeze ?
    the car has stopped and started fine for the rest of the day

    08 plate 1.9cdti 150
    Last edited by neverlandandy; 8th January 2010 at 16:55.

  2. #2
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    It starts to go cloudy at Freezing point and turns waxy at about -10c give or take,so the pump could possibly have abit of wax in it...Hope this help you?Once your up and running the fuel that returns to the tank is warmed up after a period of time thus preventing further problems.

  3. #3
    Regular Member m8internet's Avatar
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    Although the external temperature is -10'C we need know what temperature the diesel in the tank is at
    I reckon it is likely to be much lower than that!

    I have put a bottle in my boot with about 200ml of diesel
    Before starting my car I take a temperature of this bottle
    The difference is quite substantial!
    This morning the air temperature was -4'C, but the diesel in the bottle was -16'C

  4. #4
    Full Member Vaux-Man-G's Avatar
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    I used to work in a petrol station a many moons ago and a Veteran driver came in once in a Mondeo TD (M-reg)-(shows how longs its been) and I knew he bought Diesel week in week out, until one chilly morning he came in an put £7.00 worth of petrol in and then switched to Diesel.

    SO I questioned him and asked if he made a mistake and then realised so switched back. HE SAID NO. Basically he said that if he puts about 7-10% of petrol into the Diesel, it prevents it from freezing. Apparently in the ealry Mondeo's its commons due to the position of the tank!

    Maybe this is something to try? BUT I hold no responsibility regarding any problems going forward, etc!


    Bye bye Vec B
    - Hello Siggy!

  5. #5
    Full Member neverlandandy's Avatar
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    Vehicle : Insignia Elite Nav

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    Default

    a vx mechanic told me today to put a gallon of petrol in with my diesel i may actualy do that once iv used a little cause i have now filled up to the brim with diesel

  6. #6
    Regular Member m8internet's Avatar
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    Quote Originally Posted by Vaux-Man-G View Post
    I used to work in a petrol station a many moons ago
    a driver came in once in a Mondeo TD (M-reg)-(shows how longs its been) and I knew he bought Diesel week in week out, until one chilly morning he came in an put £7.00 worth of petrol in and then switched to Diesel
    he said that if he puts about 7-10% of petrol into the Diesel, it prevents it from freezing
    Maybe this is something to try
    I am part owner in a chain of petrol stations and there is no point in doing this
    The diesel in under ground tanks will freeze before the diesel in a vehicle fuel tank
    The diesel should remain in a liquid state until about -15'C, then things become an issue
    No matter what you add once the diesel is frozen, that's it

    The diesel at my nearest petrol station was sitting at -12'C
    However the diesel arriving from Grangemouth was at 15'C
    So that should remain unfrozen for at least two days

  7. #7
    Regular Member Ste's Avatar
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    Default

    m8internet do you have any data on the tank temperature logs over days, weeks seasons in your bulk storage and corresponding ambients?


    I asked at my local Asda and whilst the operatives were extremely helpful, the supervisor who I called the next day for any info was extremely unhelpful and slightly rude. I'm just interested....

    I wonder how cold it has to go before winter grade diesel will get replaced with arctic grade?

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    I thought you were supposed to put an "alpine blend" diesel fuel in for cold weather?
    e.g.
    http://www.bp.com/liveassets/bp_inte...ne_regions.pdf

  9. #9
    Regular Member m8internet's Avatar
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    Quote Originally Posted by Ste View Post
    m8internet do you have any data on the tank temperature logs over days, weeks seasons in your bulk storage and corresponding ambients?
    It would be rather irrelevant as there are tanker deliveries every second day at most of the PFS
    Equally, not all tanks receive fuel and not always the same amounts

    However I have noted that the temperature of fuel from Grangemouth is always well above freezing, typically about 10 to 15'C
    I suspect they are heating it before transportation

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