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Engine Oil Question

Discussion in 'Gen 3 Prius Main Forum' started by Sumedha, Nov 26, 2013.

  1. Sumedha

    Sumedha Junior Member

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    I just need to know the 0W-20 oil that is recommended by Toyota for the Prius is a fully synthetic oil or a mineral one ?

    I just got back from my service @ the local Toyota dealer and they filled it up with 0W-20 (they used to have 10W-30 earlier) and showed me the container that says part # 08880-83325. They also told me that this is a mineral oil and I just needed to check on your expertise.
     
    #1 Sumedha, Nov 26, 2013
  2. telmo744

    telmo744 HSD fanatic

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    #2 telmo744, Nov 26, 2013
  3. Sumedha

    Sumedha Junior Member

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    #3 Sumedha, Nov 26, 2013
  4. telmo744

    telmo744 HSD fanatic

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    #4 telmo744, Nov 26, 2013
  5. Gaëtan Lafrance

    Gaëtan Lafrance Member

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    The garage put synthétic oil last time and he said it is recommended oil for Prius.
     
    #5 Gaëtan Lafrance, Nov 26, 2013
  6. Indy John

    Indy John Member

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    Since Mobil 1 lost the lawsuit against Castrol, extra-refined mineral oil is what most of us get when we buy "synthetic" (we can't know for sure because no law requires them to tell us). That said, I'm not aware of any 0W-20 on the market that isn't considered (by the maker at least) to be "synthetic". P.S. Don't bother asking Mobil 1 whether their "synthetic" oils are mineral base or true synthetic base such as polyalphaolefin - they won't tell you - I tried.
     
    #6 Indy John, Nov 26, 2013
  7. Sumedha

    Sumedha Junior Member

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    I saw in a forum (Bob the oil Guy) someone saying that it is impossible to making 0W viscosity oils from mineral oil and it should be synthetic. I am still confused as no one is supposed to mix mineral and synthetic.
     
    #7 Sumedha, Nov 27, 2013
  8. Indy John

    Indy John Member

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    1. "Impossible"? I don't know. But like I said, Mobil won't say.
    2. "No one is supposed to mix..". Says who? Never heard of "synthetic blend"? Every auto parts store sell it.
     
    #8 Indy John, Nov 29, 2013
  9. cycledrum

    cycledrum PSOCSOASP

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    Mineral Oil - Mineral oil - Wikipedia, the free encyclopedia

    Motor Oil -Motor oil - Wikipedia, the free encyclopedia

    Any mechanic that uses the term 'mineral oil' for ICE oils doesn't speak the English language very well, simple as that.

    lab synth'd or 'highly refined crude oil' (Castol) fully synthetics, doesn't matter, I'll take either.
     
    #9 cycledrum, Nov 30, 2013
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