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  1. #26
    Thailand Expat Pragmatic's Avatar
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    Just checked my Toyota manual and it doesn't give any info as to when a coolant change is required or any instructions on how to do one. Can I take it that there is no specific mileage that one should be carried out at? If at all?

  2. #27
    Thailand Expat David48atTD's Avatar
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    Quote Originally Posted by Luigi View Post
    Diluted or not?
    DON'T dilute it.

    100% ... don't

    The concentrate, which I used in my car needed to be diluted 50% ... but you could see the viscosity of the neat fluid.

    DON'T dilute it.

  3. #28
    R.I.P. Luigi's Avatar
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    Due for a 10k service in around a month - full fluids drained etc.

    If it holds til then it's all good.


    So the question now, dilute or not to dilute?

    There's no mention of it or anything about it on the bottles.

  4. #29
    Thailand Expat David48atTD's Avatar
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    Quote Originally Posted by Latindancer View Post
    Look for leaks on the ground when you get the engine to operating temperature and the cooling system is pressurized. If no leaks found, the most likely cause is the radiator cap,
    Sorry LD, but calling BS on that.

    I had a pinhole leak in my expansion tank.

    Constant stop start driving, we were doing a wine tour, was enough to empty the car's system of cooling liquid.

    The cap was fine and no leaks on the ground.

    Heated coolant ... which hits the expansion tank with a hole in it, turns to steam as the pressure is released and no 'leaks on the ground'.
    Someone is sitting in the shade today because someone planted a tree a long time ago ...


  5. #30
    R.I.P. Luigi's Avatar
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    ^ Answered by Dave.


    Cheers.

  6. #31
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    Coming soon, the How much is a fair price for a new Mazda 2 engine thread

  7. #32
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    Quote Originally Posted by David48atTD View Post
    Sorry LD, but calling BS on that.

    I had a pinhole leak in my expansion tank.

    Constant stop start driving, we were doing a wine tour, was enough to empty the car's system of cooling liquid.

    The cap was fine and no leaks on the ground.

    Heated coolant ... which hits the expansion tank with a hole in it, turns to steam as the pressure is released and no 'leaks on the ground'.
    Totally agree Dave. Not sure I'd wait that long Lulu. up to you.

  8. #33
    Thailand Expat AntRobertson's Avatar
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    Coolant?





    Is that like non-alcohol beer for girls?

  9. #34
    Thailand Expat David48atTD's Avatar
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    If Luigi, and I say if ... you happen to 'boil the thing dry' as in run the coolant out of the system.

    Two things NOT to do.

    1/ Don't remove the radiator cap ... but the expansion cap is fine to remove.

    2/ Don't pour liquid into the radiator for about 30 mins. They can and do violently sort of 'explode' as you remove the pressure on the radiator tank and the super-heater coolant expands and blows out.

    2A/ The sudden cooling of different metals (iron engine block and alloy head) can distort/warp the engine because the co-efficient of expansion of the different metals.

  10. #35
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    Quote Originally Posted by Luigi View Post
    Due for a 10k service in around a month - full fluids drained etc.

    If it holds til then it's all good.


    So the question now, dilute or not to dilute?

    There's no mention of it or anything about it on the bottles.
    If there are no instructions to dilute, then you just use out of the bottle.

    As mentioned, to avoid internal Aluminium corrosion damage, do NOT mix different brands of coolant.

    Best to just top it up with plain water while enjoying 2-3 Steinlagers, which I understand are on special ATM.
    Last edited by MAF; 25-08-2019 at 04:38 PM.

  11. #36
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    Quote Originally Posted by David48atTD View Post
    If Luigi, and I say if ... you happen to 'boil the thing dry' as in run the coolant out of the system.

    Two things NOT to do.

    1/ Don't remove the radiator cap ... but the expansion cap is fine to remove.

    2/ Don't pour liquid into the radiator for about 30 mins. They can and do violently sort of 'explode' as you remove the pressure on the radiator tank and the super-heater coolant expands and blows out.

    2A/ The sudden cooling of different metals (iron engine block and alloy head) can distort/warp the engine because the co-efficient of expansion of the different metals.
    Number 1 may well also remove your hand.

  12. #37
    CCBW Stumpy's Avatar
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    Hey Lu,
    Do not dilute. Just fill back to level on expansion tank. Ideally what you want the shop to do is conduct a pressure test on your system. Could be a cap issue allowing it to escape under pressure.

    Newer cars now run straight Antifreeze. The old days of diluting are long gone and most radiators now are plastic or have plastic ends and aluminum fins and are much smaller as the cooling efficiency has improved dramatically

    As for brand mixing. If the one you purchased is 100 ethylene glycol then all good. If you have an owners manual it will tell you what to add and to what spec.

    I wouldn't sweat it too much. Just have it pressure tested at next service. Sometimes plastic expansion tanks will crack at the hose. It's common

    Cheers

  13. #38
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    Quote Originally Posted by Luigi View Post
    Diluted or not?
    Dilute it.

    Your cars not gonna freeze up in Thailand.

    Plus you've saved some for when it empties again next week

    Jus boil a kettlle and let it cool and that's the same as distilled water to dilute with

  14. #39
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    Quote Originally Posted by Luigi View Post
    Due for a 10k service in around a month - full fluids drained etc.

    Easy way out is to get the service done early. I often do. There is no rule saying that you must go until the 10Ks.....sheesh. How many Ks has it done, total, anyway ?


    Quote Originally Posted by Dillinger View Post

    Just boil a kettlle and let it cool and that's the same as distilled water to dilute with
    Boiling water does not remove the minerals which cause electrolysis.

  15. #40
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    Done.

    Reservoir took 1 bottle up to the fill line.

    Radiator took 1.5 bottles up to the top.


    Will check in the morning, use it for the school run and check again after having cooled down, and will keep an eye on it.

    Cheers.

  16. #41
    CCBW Stumpy's Avatar
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    That's a reasonable amount to add Lu. That small car has a very small capacity so adding a bunch is more likely a leak somewhere. A pressure test will sus that out quickly.

    I could get into more details on anti freeze loss but those are a deeper diagnosis after a pressure test and expansion tank inspection had taken place.

    Good Luck

  17. #42
    Thailand Expat David48atTD's Avatar
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    Quote Originally Posted by Dillinger View Post
    Dilute it.

    Plus you've saved some for when it empties again next week
    Yeh ... that can work ... depends on what SomChai decides to do when it's fixed.

    BTW ... the coolent qualities ... it's got nothing to do with the 'anti-freeze' quality ... it's to do with corrosion.

  18. #43
    Thailand Expat David48atTD's Avatar
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    Quote Originally Posted by Latindancer View Post
    Easy way out is to get the service done early. I often do.
    There is no rule saying that you must go until the 10Ks.....sheesh.
    How many Ks has it done, total, anyway ?
    Modern coolant lasts 3 years/100k klms.
    Some last 5 years/150k klms

    ... nothing to do with a 10k service.

    Most service manuals will have a page indicating when it should be changed.

  19. #44
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    Mazda 2? jesus, that's like the mother of hairdresser cars

  20. #45
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    Quote Originally Posted by David48atTD View Post

    ... nothing to do with a 10k service.
    Yeah yeah yeah.

    But he's taking the car in there for the service, and if someone takes their car in early for a 10K service and says "oh...by the way, I have a coolant loss problem", they will fix it at the same time.
    Last edited by Latindancer; 25-08-2019 at 04:17 PM.

  21. #46
    Thailand Expat Pragmatic's Avatar
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    Mine will get changed at 10 years.

    In 2004 Toyota and Lexus came out with their pink super-long-life coolant. This is what we use for these vehicles. Their recommendation on this coolant is that it be replaced the first time at ten years or 100k miles. Their recommendation thereafter is that it be replaced every 5 years or 50k miles.
    https://www.integrityautoinc.com/antifreeze/

  22. #47
    Thailand Expat AntRobertson's Avatar
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    Quote Originally Posted by Latindancer
    Correct. But he's taking the car in there for the service, and if someone takes their car in early for a 10K service and says "oh...by the way, I have a coolant loss problem", they will fix it at the same time.
    If someone wants advice about curtain rails they can ask you. Leave the car talk foe the men-folk aye.

  23. #48
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    If you had green coolant I think you are supposed to top up with green coolant.

    Red coolant is not the same.

    I have red coolant and i am not supposed to top up with green.

  24. #49
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    Quote Originally Posted by Dragonfly View Post
    Mazda 2? jesus, that's like the mother of hairdresser cars

  25. #50
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    Quote Originally Posted by Headworx View Post
    Coming soon, the How much is a fair price for a new Mazda 2 engine thread
    long motor is Bt.150,000.

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