Recommended Coolant
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  1. #1
    Tadpole
    Join Date
    Mar 2011
    Location
    Brisbane
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    5

    Default Recommended Coolant

    Hello All!

    I've never joined a forum before so here goes.

    I have a 1995 306 sedan - was originally bought for my wife to run around in but we started having a few problems over the 3 years that we have owned it so now it's mine.

    I have just replaced the headgasket and I need to be sure that I am using the right coolant. I have been told the normal Glycol antifreeze is no good.

    Any advice?

    Regards
    Clive

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  2. #2
    Fellow Frogger!
    Join Date
    Nov 2010
    Location
    Sydney
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    268

    Default

    Welcome to AF!

    A year ago, I went to Peugeot to purchase some coolant, and got the 2 litre bottle (9735 K1) for $20. Doesn't seem that much more expensive compared to non-OEM brands.


    Here are the part numbers for long life coolant (pre-diluted):

    2 litres: 9735 K1

    5 litres: 9735 K0

    20 litres: 9735 J9

    210 litres: 9735 J8

  3. #3
    Tadpole
    Join Date
    Mar 2011
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    Brisbane
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    Default

    Thanks, I'll give it a go.

  4. #4
    Veni Vidi Posti 68 404's Avatar
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    Oct 2005
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    Rome
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    And Clive...

    Welcome to

    Hopefully we will hear more about your Gaulic motoring experiences

    Dave
    2008 Renault Laguna 2.0 dCi break
    ​1997 BMW K1200RS

    IR655
    (George Bush Snr): "I'll never apologize for the United States of America. Ever, I don't care what the facts are."


  5. #5
    Fellow Frogger! Binky's Avatar
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    Nov 2010
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    15 Credibility st. Nth Fitzroy, Vic.
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    Welcome Clive!

    Glycol is corrosive, but is good as an antifreeze agent. Non-glycol radiator fluid is much kinder to your cooling system. However non-glycol isn't really antifreeze, so if you're planning a trip to the snow, by all means put a glycol antifreeze in your system, but be sure to flush it out and replace with non-glycol when you return to standard Australian plus zero temperatures.

    Binky.

  6. #6
    Fellow Frogger!
    Join Date
    Nov 2010
    Location
    Sydney
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    Default

    Also, the OEM long life coolant will provide protection down to -35C which should be plenty for trips down to the snow.

  7. #7
    Tadpole
    Join Date
    Mar 2011
    Location
    Brisbane
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    Thanks for the advice and the welcomes.
    The old gasket was rotten when I got it out. I undid the headbolts and just lifted the head off!

    Clive

  8. #8
    Fellow Frogger!
    Join Date
    Mar 2011
    Location
    Kendenup WA
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    124

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    Some months ago I did some research on this.
    One of the serious problems with most proprietary coolants is that they contain amounts of silicon and silicon is a no no for oxygen sensors and catalytic converters.
    Another problem, and I suspect why Binky mentions corrosion, is that after a year of use a coolant starts becoming an electrolyte which allows a transfer between the anode and cathode of different metals such as ferrous and non-ferrous metals -- i.e. aluminium etc.
    Experience has found that refilling with distilled water and adding an inhibitor gives all the protection needed.
    During my twenty years of previously living in Perth the very mild frosts occasionally experienced never caused any problems.

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