2017 Prius Coolant Capacity

Discussion in 'Gen 4 Prius Main Forum' started by Shujayet, Aug 5, 2022.

  1. Shujayet

    Shujayet New Member

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    2017 Prius
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    Two
    Hello,
    I have a 2017 Prius Two with 110k miles on it, never changed the coolant. How many gallons of Toyota 50/50 mixed coolant do I need to fill both the engine and inverter coolant?

    Thank you!
     
  2. Mendel Leisk

    Mendel Leisk Underfoot

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    Vehicle:
    2010 Prius
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    Touring
    Two US gallon bottles will do. Here's the spec'd capacities from Owner's Manual (page 732), though I suspect the drained quantity will be less:

    upload_2022-8-5_5-10-42.png
     

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  3. Shujayet

    Shujayet New Member

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    Location:
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    2017 Prius
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    Two
    Thank you!
    I bought two gallon of Toyota coolant but the independent mechanix said it may take three.
    That’s why I got confused.
     
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  4. Jburner

    Jburner Junior Member

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    Four
    No way it takes 3. I barely used 1 when I did mine, but that's probably because I didn't remove the heat exchanger hose underneath. And yes, I followed the instructions noted above. I did it at 100K and the coolant that I took out was the same color that I put in. I definitely could have gone longer.
     
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