Coolant question. Here we go again!

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by DPZ, Jul 7, 2025 at 3:30 PM.

  1. DPZ

    DPZ Junior Member

    Joined:
    Jul 25, 2017
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    Location:
    Arizona
    Vehicle:
    2014 Prius
    Model:
    Five
    Does coolant go bad when stored in your garage?
    I have an open bottle of Toyota OEM coolant Part No 00272-SLLC2 that has a yellow cap(the upc is 0-74804-00867-8). I also have a newer unopened bottle with the exact same Toyota part number but the bottle has a pink cap (the upc and the upc is 7-97496-88225- 7).
    1. Are these 2 coolants able to be mixed?
    2. Is the open yellow cap bottle too old to be used (might be opened 10 years ago just sitting in the garage 3/4 full?


    Thanks
    GV
     
    #1 DPZ, Jul 7, 2025 at 3:30 PM
  2. BiomedO1

    BiomedO1 Senior Member

    Joined:
    Mar 27, 2021
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    Location:
    SacTown, Ca
    Vehicle:
    2021 Prius Prime
    Model:
    LE
    Since the UPC# are different, the formulation may have changed over the years. Just because it states Toyota on the label doesn't mean it the right coolant for your car. Further investigation is required - perhaps call your nearest dealership parts department to check.

    Hope this helps......
     
    #2 BiomedO1, Jul 7, 2025 at 4:12 PM
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