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  1. Join Date
    Dec 2017
    Posts
    2,686
    #11
    Quote Originally Posted by Vodka View Post
    you mix 1 part nalcool to 32 parts water (i think you quoted the specific gravity of the nalcool CONCENTRATE not nalcool+water solution). that's mostly just water so it'll perform mostly like water which is better than water+glycol but you don't raise the boiling point. i'm not sure if that's OK w/ hyundai's diesel engine...

    more importantly it seems like an old school formula that uses nitrites, borates, silicates. cars these days use organic acid corrosion inhibitors on a water/glycol base. e.g. honda uses 10-year coolant. ford coolant good for 150,000km. toyota pink coolant 5yrs i think. not sure about hyundai.

    you shouldn't switch to old-school coolant if your car uses organic acid tech
    I've heard once about this organic acid stuff and they say it is far way better than the traditional​ coolant. Are all new cars using this kind of stuff? How will I know if I have that kind of coolant?

  2. Join Date
    Feb 2014
    Posts
    2,531
    #12
    Quote Originally Posted by Archerfish View Post
    I've heard once about this organic acid stuff and they say it is far way better than the traditional​ coolant. Are all new cars using this kind of stuff? How will I know if I have that kind of coolant?

    yeah i think all new cars use organic acid tech OAT coolants. i remember back in the 90's the replacement interval for my toyota red coolant was like 2 years? that's because old school coolants have chemicals in them that get depleted over time so you had to replenish them very often

  3. Join Date
    Dec 2015
    Posts
    200
    #13
    Thanks for the response guys. Coolant it is.

  4. Join Date
    Dec 2015
    Posts
    200
    #14
    Just called Hyundai and according to them, they have 50/50 pre-mixed coolants, but they don't have any info whether if it's IAT, OAT, or HOAT.

    And I don't have any idea which type is in my car which came from the factory.

    Also as indicated in the manual, I may use 35/65 ratio for our weather.

    Any tips guys? Thanks!

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Hyundai accent diesel coolant vs water