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Thread: Mixing Pink and Red coolant?

  1. 8th August 2015, 09:38 AM #1
    Gullible's Avatar
    Gullible
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    Mixing Pink and Red coolant?

    Hi,
    My D2 V8 has Penrite 5 year Pink in it. I can no longer find it for sale. Penrite now has an 8 year Red coolant.

    What would happen if I topped up my Pink with the Red?

    I only need a top-up and do not want to drain and flush my system if I can avoid it.
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  2. 8th August 2015, 12:36 PM #2
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    PI would read the labels very carefully, and if different no way. As an interim measure, say 1 litre max, distilled water.
    Or, can you ask Penrith or distributor
    You can get some nasty chemical reactions
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  3. 8th August 2015, 12:53 PM #3
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    If they are both OAT's it won't be an issue, but double check with Penrite.
    The colour is only a dye anyway.

    I use a Cummins/Fleetguard HOAT which Cummins claim is compatible with anything !
    Cummins changed the dye at one point (from purple to red) and renamed it, but it was exactly the same stuff I'd been using.
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  4. 8th August 2015, 01:36 PM #4
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    All I can find from Penrite is that the red replaces the pink. I cannot find out about them being compatible.
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  5. 8th August 2015, 01:43 PM #5
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    Penrite Anti-Freeze/Anti-Boil - 5 Litre, 6 Year - Supercheap Auto Australia
    89 RRC
    92 RRC Sherwood
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