when do I need coolant and inverter fluid changes for 2013 Toyota prius??

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by k91621, Nov 20, 2019.

  1. k91621

    k91621 New Member

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    the mileage is 51k now, if the coolant and inverter fluid services are required? thanks
     
  2. bisco

    bisco cookie crumbler

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    welcome!
    either 100k or 120k. if you did not get a maintenance schedule book, you can find one at the toyota owners website
    the only things between 0 and 100 are oil, filters, tire rotations, brake caliper slide pin lube and inspections
     
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  3. NutzAboutBolts

    NutzAboutBolts Senior Member

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    tranny fluid, brake fluid, and all the cleaning of the egr and other stuff lol
     
  4. Mendel Leisk

    Mendel Leisk 'Orrible Oracle

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    You mean the two coolant circuits, engine and inverter?

    In the States:

    engine coolant: 100K miles or 10 years (whichever comes first)
    inverter coolant: 150K miles or 15 years

    And thereafter:

    engine and inverter coolant: 50K miles or 5 years
     
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  5. anonymous

    anonymous Member

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    What happens if you never change the coolant? Our 2011 Prius has 232k miles but afaik we've never changed any of the coolant except the engine coolant just now as part of head job, but I don't plan to mess with the inverter. Its coolant still looks perfectly fine, as did the engine coolant and the parts in contact with the coolant that I disassembed.
     
  6. k91621

    k91621 New Member

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    THANKS
     
  7. k91621

    k91621 New Member

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    I'm not sure, I went to the dealer for oil change and got a quot for the coolant and inverter fluid change. I'll call and ask about the details. Thanks
     
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  8. k91621

    k91621 New Member

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    IMG_4837[1].JPG
     
  9. Grit

    Grit Senior Member

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    Probably a video named “Prius fireball” that will emerge, go viral and be shared on here maybe 4 or 5 times.
     
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  10. Mendel Leisk

    Mendel Leisk 'Orrible Oracle

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    Old coolant loses it's anti-corrosion ability? FWIW, Toyota Canada says to change both circuits at 100K miles or 10 years. That's a long interval btw, compared to other cars.

    Google for more info.
     
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  11. bisco

    bisco cookie crumbler

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    might lose anti freeze protection
     
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  12. bisco

    bisco cookie crumbler

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    no. and you could save a lot of money doing those filters yourself.

    the cabin filter gets checked/cleaned/replaced every 15k, and the engine air filter every 30k
     
  13. Mendel Leisk

    Mendel Leisk 'Orrible Oracle

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  14. NutzAboutBolts

    NutzAboutBolts Senior Member

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    Coolant helps dissipate heat from the engine, over time, the coolant loses the chemical to cool down the engine so your engine will overheat. They do sell coolant strips to check if the coolant chemical is still in standard or not. I usually change my coolant every 120k miles.
     
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  15. k91621

    k91621 New Member

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    yes, that's what I'm going to do.
     
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  16. Mendel Leisk

    Mendel Leisk 'Orrible Oracle

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    When you DIY the air filters, you might a get a new perspective on their condition. Maybe being further north and on the west coast is a factor, but over 9 years and 84K kms, I've yet to change either. The engine air filter in particular looks almost new still.

    It's not chiselled in granite, that you must replace them, if they look near-pristine.
     
  17. CR94

    CR94 Senior Member

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    Not unless you've been diluting the coolant with water. You might lose corrosion protection, because the pH will eventually go acidic.

    I just had my engine coolant "flushed" (whatever that means!) by the dealer for about $117, including one(?) "unit" of new SLLC, $20 off in coupons, and a(n invisible) "flush kit." A few days later I got a coupon for "Winterizing Service," including draining coolant and up to one gallon of SLLC for $99. Unclear what's the difference.
     
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