Walmart Coolant

Discussion in 'Gen 2 Prius Main Forum' started by qmanqman, Oct 22, 2025 at 12:30 PM.

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  1. Prodigyplace

    Prodigyplace 2025 Camry XLE FWD

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    #21 Prodigyplace, Oct 23, 2025 at 11:47 AM
  2. BiomedO1

    BiomedO1 Senior Member

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    Out here in the states, distilled water is cheap and readily available - especially at refueling stations for that specific purpose.
     
    #22 BiomedO1, Oct 23, 2025 at 11:50 AM
  3. qmanqman

    qmanqman Active Member

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    In Colorado Springs where I live tap water is basically distilled water.
     
    #23 qmanqman, Oct 23, 2025 at 11:53 AM
  4. priumium

    priumium Junior Member

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    Wow. Can I have a source on that? Normally water pumped to consumers thru pipes are chlorined in the EU to avoid germ growth - also with a lowered ph to avoid deposits. And for coolants glycol is naturally added only to avoid freezing since we can have -20° winter days up here in the nordics.

    Dealer and interweb told me G13 is recommended for any Prius since gen2..
     
    #24 priumium, Oct 23, 2025 at 11:59 AM
    Last edited: Oct 23, 2025 at 12:05 PM
  5. qmanqman

    qmanqman Active Member

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    Source is my neighbor via me. He is a retired chemistry prof who told me years ago that our tap water is so soft they use it as distilled water in their lab. It does have chlorine as you can sometimes smell it. But the beauty of chlorine is you just set the water out for a time and it evaporates away. We do have naturally occurring flouride so it isn't perfect.
     
    #25 qmanqman, Oct 23, 2025 at 12:29 PM
  6. priumium

    priumium Junior Member

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    Distilled water is defined as pure water molecules. It’s not up to your neighbor to redefine ;)

    Any contaminants including chlorine or fluoride makes it by defintion not distilled. These are the other molecules or elements that will get stuck in filters or in the case of coolants, the block. It’s the boring truth of chemistry.
    Distilled water - Wikipedia
     
    #26 priumium, Oct 23, 2025 at 1:33 PM
  7. qmanqman

    qmanqman Active Member

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    My neighbor is "Defining Man" and if he says it I believe it. He's more reliable than Google AI when it comes to chemistry. should have been there for our talks on alcohol . . . Wild!

    Ya, I'm sure there's some fluoride molecules here and there but coolant passages are huge.
     
    #27 qmanqman, Oct 23, 2025 at 2:32 PM
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