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Could this be the real reason why the head gasket fail?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Anklepain, Sep 4, 2024 at 10:48 AM.

  1. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Our last car, a civic, manual called for 3.2 litres. I was still in the mindset that dealership oil changes would garner warranty brownie points. One time after a change I checked; it was at least 10 mm over to mark, maybe more. I’m guessing they dumped in 4 one liter bottles.

    anyways, after draining the overfill that time, under the car, holding the drain bolt just in the hole, trickling oil into a graduated canning jar (till my arms started shaking too much), I resolved to pack in the dealership oil changes.