0W-20 OIL......WHY WE USE THIS GRADE OF OIL??

Discussion in 'Gen 3 Prius Main Forum' started by orenji, Sep 5, 2016.

  1. Mendel Leisk

    Mendel Leisk Senior Member

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    Not sure. Anyway, Toyota doesn’t say anything about synth vs conventional, just weights and specs.
     
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    The word “synthetic” appears twice in my North American Owners Manual; both times relating to upholstery material.
     
  3. ASRDogman

    ASRDogman Senior Member

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    I repeat: "Maybe" it's the country, but my owners manual say synthetic.... But what does Toyota know?
    Maybe it's the maintainence manual? I don't care. It says synthetic oil.... argue if you want, but I won't.
     
    #43 ASRDogman, May 9, 2021
    Last edited: May 9, 2021
    Mendel Leisk likes this.
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