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Can K-Seal damage a car?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Meriadoc123, Oct 29, 2022.

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  1. Meriadoc123

    Meriadoc123 New Member

    Joined:
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    Location:
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    Vehicle:
    2010 Prius
    Model:
    III
    I have a 2010 Prius that has been diagnosed (for sure) with a head gasket that will need to be replaced: coolant is leaking in the pistons. The battery health is not great either. We will buy another car and either sell for cheap this one or drive it until it dies. Right now, the car doesn't even have the check engine light on, and it only shakes a tiny bit on start up.

    I'm considering putting K-Seal into the coolant to extend the life of the car as long as possible. Are there downsides? Here's a website that says that the stuff can mix with pockets of air and then solidify in the engine and cause damage: https://www.kwecars.com/jaguar-tech-centre/coolant-sealants/
     
    #1 Meriadoc123, Oct 29, 2022
  2. PriusCamper

    PriusCamper Senior Member

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    Location:
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    Vehicle:
    2007 Prius
    Model:
    Two
    Don't use this glue in your coolant system!!!

    If you're just making short trips around town and you don't ever let the engine heat up too much you can sometimes go years ignoring this problem. Once it starts running really rough at start up you're at risk of damaging the dampener inside the transmission so you don't want to see that error code.
     
    #2 PriusCamper, Oct 29, 2022
    Last edited: Oct 29, 2022
    Foxglove likes this.
  3. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Yeah, don't add insult to injury, deal with the head gasket. Or sell with full disclosure. I really think that stuff should be illegal, suspect it's used by a lot of unscrupulous resellers.

    If you don't mind:

    1. What's the miles?
    2. Has the EGR and intake manifold ever been cleaned, and if so: at what miles?
     
    #3 Mendel Leisk, Oct 29, 2022
    Foxglove likes this.
  4. Grit

    Grit Senior Member

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    Vehicle:
    2012 Prius
    Model:
    Four
    Yes and then sell it quickly. Also say all highway miles.
     
    #4 Grit, Oct 30, 2022
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