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  1. Join Date
    Dec 2005
    Posts
    71
    #1
    I’m planning to drain my radiator and how much coolant should I put? May ratio ba ang tubig at coolant na ilalagay? Thanks in advance. panigurado lang para sa long drive.... iwas over heat.

  2. Join Date
    Dec 2005
    Posts
    2,421
    #2
    most owner's manual would say 50/50, pero sa hot places like RP, i'd go with 80/20 or even 90/10 (distilled water/coolant). konting coolant lang naman kelangan mo to prevent corrosion.

  3. Join Date
    Aug 2004
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    1,563
    #3
    toyota sell pre-mix coolant (50/50 ratio yata ito). we use 50/50 distilled-water/coolant ratio.

  4. Join Date
    Dec 2005
    Posts
    71
    #4
    di po ba ang coolant is just to prevent over heating??? tama po ba ko??? taka lang me kong ano talaga gamit ng coolant just for preventing corrosion lang???? thanks po sa reply

  5. Join Date
    Feb 2006
    Posts
    28
    #5
    coolants just prevents water from boiling. kasi coolant raises the boiling point of water above 100 celcius. kapag nagboil kasi ang water,it will produce steam, magcreate sya ng pressure sa loob ng radiator. e wala naman exhausta ang steam, pwede magleak water sa gasket inside the engine, plus if water boils, it lessens the effectivity of water to cool the engine

  6. Join Date
    Aug 2004
    Posts
    22,702
    #6
    Oo nga... I've been looking this up, since I used to think 100% or 90% water is best... it's actually the opposite... 50/50 is optimum, as it raises the boiling point of water about 6 degrees... 70% coolant raises the boiling point 13 degrees.

    There are special coolants for sale that allow you to use 100% coolant (waterless system). Ford uses this on the new Focus, and it has a lifetime guarantee. Some of the Miata club boys also run a waterless coolant system in their cars for track use.

    Of note: these special coolants ARE NOT the same as the off-the-shelf stuff.

    So, in answer to the original question? 50/50 ka nalang, dude.

    Ang pagbalik ng comeback...

  7. Join Date
    Mar 2003
    Posts
    397
    #7
    its best to refer to your owner's manual for the proper mix ratio. if you want a hassle-free application, there are some products that are already pre-mixed (50-50 ratio already) like peak (saw it dati sa price smart fort boni); pag pre-mixed kasi just pour it into your radiator and no more need for observing mix ratios

  8. Join Date
    Sep 2004
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    2,975
    #8
    Also, most coolants contain anti-rust chemicals, so they help protect your radiator.

  9. Join Date
    Jan 2003
    Posts
    973
    #9
    what will happen if 30 coolant n 70 water?

    overheat?

  10. Join Date
    Nov 2002
    Posts
    581
    #10
    ilang liters ba ang radiator? so kung 50/50 mixture, ilang liters ng distilled water and coolant, also what brand of coolant.

    thanks!!

  11. Join Date
    Aug 2004
    Posts
    1,563
    #11
    buknoy, hindi naman mag overheat yung sasakyan pag walang coolant (only water). most jeepney hindi naman gumagamit ng coolant pero hindi naman nag ooverheat. kahit nga yung lancer box type namin hindi din nag overheat kahit distilled water lang gamit namin.

    alnr, best thing to do is to check your owner's manual. depende din kasi kung ilan yung laman ng radiator sa sasakyan mo. or pwede din drain mo yung laman ng radiator then fill it with water by liter. para ma measure mo ilang liter ang kasya. then drain the water again and this time fill it with 50/50 mixture of coolant and distilled water. what i did before was I use an empty 1 liter bottle then fill half a liter of distilled water and half a liter of coolant. then saka ko binuhos sa radiator until mapuno yung radiator and sa max ng reservoir.

  12. Join Date
    Nov 2002
    Posts
    581
    #12
    mcbry, thanks ha. check ko manual nung auto. ok din yung suggestion mo

  13. Join Date
    Oct 2004
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    2,315
    #13
    pano kung 100% coolant pwede ba?

  14. Join Date
    Feb 2006
    Posts
    80
    #14
    Quote Originally Posted by mcbry
    toyota sell pre-mix coolant (50/50 ratio yata ito). we use 50/50 distilled-water/coolant ratio.
    Brod pwedeng magtanong magkano ba ang coolant sa toyota,caltex,prestone etc?salamat

  15. Join Date
    Nov 2002
    Posts
    322
    #15
    reviving an old thread...sorry for this guys...

    san nilalagay ang Engine Coolant? dun ba sa container na nakalagay "coolant only"?

    Thanks!

  16. Join Date
    Oct 2002
    Posts
    22,658
    #16
    You fill both the radiator and the reservoir (jug) with the correct mix on most vehicles (separate cap for radiator and reservoir). If the coolant reservoir and the radiator have only one cap, that is where you fill.

    I use 50/50 so I don't have to worry so much about diluting the mixture during top-ups.

    http://docotep.multiply.com/
    Need an Ambulance? We sell Zic Brand Oils and Lubricants. Please PM me.

  17. Join Date
    Mar 2005
    Posts
    1,011
    #17
    Quote Originally Posted by kools View Post
    taka lang me kong ano talaga gamit ng coolant just for preventing corrosion lang???? thanks po sa reply


    Meron. Caltex Radiator Conditioner. No antifreeze properties. It's what I use on my watercooled computer.

  18. Join Date
    Jun 2006
    Posts
    2,605
    #18
    Can you mix different brands of coolant but same type or not? Ex caltex mix with prestone. Also if the manual says use dexcool type coolant will it matter if i use a different type say ethyl glycol?

  19. Join Date
    Nov 2005
    Posts
    7,976
    #19
    Normally 50/50 ang recommended ratio ng manufacturer but you can

    decrease it to 80/20 because tropical climates like Pinas, useless na

    ang properties niya to prevent freezing so the anti-boil and rust properties

    na lang ang habol natin.

  20. Join Date
    Aug 2004
    Posts
    22,702
    #20
    Actually, coolant is recommended even in tropical weather. Tech&tuner did an excellent article on this, also.

    Basically, at 50/50, your boiling point is raised higher, so your fluid will have less chance to boil over, at lower ratios, the boiling point of the fluid is lower, and the possibility of having water boil at cavitation points within the engine increases.

    While it's possible to run engines on 100% water, a 50/50 mix will give you much better performance.

    And like I said a few posts (and a few months) back, there are already systems using 100% coolant (not off-the-shelf stuff, special coolant), and the guy I talked to who uses it for his racing car says it gives much better performance than a mix.

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water-coolant ratio??