Oil Catch Can for Prius C?

Discussion in 'Prius c Accessories and Modifications' started by abubin, Oct 6, 2022.

  1. abubin

    abubin Member

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    I can't really find information on oil catch can installation on a Prius C. Is there a need for it?

    I just got the car used and it does not seems to be consuming oil. So does Prius C have issue of oil consumption? Or benefit from OCC?
     
    #1 abubin, Oct 6, 2022
  2. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

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    Take a look through the throttle body throat: is there a pool of goop?
     
    #2 Mendel Leisk, Oct 6, 2022
  3. abubin

    abubin Member

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    The throttle wasn't that dirty. I am not sure if cause the previous owner cleaned it or it was like that. The car had 140k km (87k miles)
     
    #3 abubin, Oct 6, 2022
    Last edited: Oct 6, 2022
  4. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

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    Did you see anything, looking through to the intake manifold, any pool?
     
    #4 Mendel Leisk, Oct 6, 2022
  5. abubin

    abubin Member

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    The intake manifold does not look that bad either. Again, maybe the previous owner had it cleaned before.

    Even the EGR cooler looks to be in acceptable condition. By that I mean, I can see lights through the other side.
     
    #5 abubin, Oct 6, 2022
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  6. Mendel Leisk

    Mendel Leisk Patron saint of newly poured sidewalks

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    Where does the Prius c PCV come in from? I've heard the engine is carried over from second gen. Those engines have the PCV valve atop the the engine valve cover, at the left* end, which I think is a lot cleaner. Gen 3 Prius engine has the PCV valve positioned top/front of engine block, likely more prone to goop up the intake manifold. Oil catch cans are only helpful if the PCV is continuously dumping oil/water/gas mix into the intake.

    * Left being as you sit in the car
     
    #6 Mendel Leisk, Oct 6, 2022
  7. abubin

    abubin Member

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    Yes, the PCV does reside at the left top of the engine. It does means there is no need for a oil catch can then. I will probably use the spare OCC I have on another car.

    Thanks @Mendel Leisk
     
    #7 abubin, Oct 6, 2022
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  8. PriusII&C

    PriusII&C Active Member

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    How effective is an OCC in catching oil from entering the combustion chamber? How detrimental is this amount of reduction to EGR buildup and catalytic converter longevity? People talk a lot about using OCC on Gen 3 Prii, but I have not seen any concrete data/analysis on its benefit.

    Based on my reading of other people's results, it seems that an OCC can catch up to 10% - 15% of the lost oil in an oil-burning Prius. If this is true, then it is still an order of magnitude smaller from fixing the oil-burning issue, consequently casting a doubt on the worthiness.

    Please share your data/thoughts.
     
    #8 PriusII&C, Oct 6, 2022
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