Prius Coolant Pentosin=Toyota Coolant?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Jkan2001, May 27, 2018.

  1. Jkan2001

    Jkan2001 Member

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    It's time to drain/refill the coolant on my 2010 prius. If I need to order some parts online for maintenance, does anyone know if this Pentosin A4 is the fluid that Toyota buys and rebadges for their OEM coolant? The specs look pretty similar and it's a HOAT coolant.

    More Information for PENTOSIN 8115209
     
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    In a big US city, why not just pick up Toyota coolant, the spec'd stuff, from a dealership?

    I know, that's not the question.
     
  3. eliteconcept

    eliteconcept 700 mile club, top tank mpg 69.5

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    second this. cost at toyota is about 20 to 30 depending on the dealer. call around to find the best price. IMO not worth the risk, just get toyota stuff.
     
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  4. farmecologist

    farmecologist Senior Member

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    Third this. It's not like this is a frequent maintenance item so I would pony up for the Toyota coolant..even if it is slightly more expensive.

    BTW - many dealers sell Toyota coolant via Ebay..and it seems to be fairly reasonably priced.
     
  5. rebenson

    rebenson Member

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  6. padroo

    padroo Senior Member

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    That is a good price. Shipping will be the killer.
     
  7. Jkan2001

    Jkan2001 Member

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    I put in the Pentosin A4, no issues.
     
  8. padroo

    padroo Senior Member

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    Coolant is one of those strange things, back in the day there was only one color and now every manufacturer has a different flavor and
    you are suppose to use a particular type or bad things will supposedly happen to your cooling system. I am not a chemical engineer but using some logic, aren't the cars cooling systems all made out of aluminum, rubber and plastics. The only thing I can think different are seal compatibility. Anyone have a logical answer?
     
  9. Grit

    Grit Senior Member

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    @Raytheeagle is one.
     
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  10. Mendel Leisk

    Mendel Leisk Senior Member

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    The coolant might react with something in the car, or the previous coolant.
     
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  11. Raytheeagle

    Raytheeagle Senior Member

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    While the materials haven’t changed, some of the additives in the coolant have. If those additives are co-mingled, incompatibilities May happen. If the incompatibility leads to congealing, plugging results.
     
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  12. Mendel Leisk

    Mendel Leisk Senior Member

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    It's not just chauvinism, sticking with the factory coolant is one sure way to ensure coolant compatibility. I'm the same with brake fluid, transaxle fluid, even engine oil, though the latter is overkill.
     
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  13. padroo

    padroo Senior Member

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    One big change was when they went with aluminum radiators.
     
  14. eliteconcept

    eliteconcept 700 mile club, top tank mpg 69.5

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    again you may have a dealer in your area that sells this every day for about $20. When I was out of town for work I called the local dealership where I was at and they had it for 20.99, while my local dealership at home had it for like $31 or $32. You may be shocked at your local dealers price (good or bad)
     
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