Is the Prius oil filter as bad as this one?

Discussion in 'Gen 2 Prius Technical Discussion' started by pasadena_commut, Jun 9, 2025 at 2:09 PM.

  1. pasadena_commut

    pasadena_commut Senior Member

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    Ran into this video today:



    where they test some OEM oil filters. The Toyota filter tested was 90915-YZZD1, whereas the one for the Prius is 90915-YZZN1. In short, the Toyota filter tested has a very high flow rate and abysmal filtering. Is the N1 variant the same construction, with similar performance?

    Key points in the video:

    0:26 - picture of the filter - the last 2 digits cannot be read but the link in the text is to the YZZD1.
    8:29 - tear down of the filter
    9:29 - comparison of filter scores with a variety of other filters

    They did buy the Toyota filter from Amazon, which is often a bad choice, but it appears that the seller is Amazon itself, so unlikely to be a fake. As Amazon links never work, go there and enter B0044AVLF0.

    I did wonder if they got a bad filter, but what are the odds that the only one they buy is bad unless broken units are extremely common?
     
    #1 pasadena_commut, Jun 9, 2025 at 2:09 PM
  2. Tombukt2

    Tombukt2 Senior Member

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    Yeah I don't know this oil filter debacle has been going on since the eighties. I use a fram or wix mid line call it done . Oil goes on very light tan color comes out almost coffee colored . Whatever the mileage . It's worked almost 50 years for me . Never any engine failures yet .
     
    #2 Tombukt2, Jun 9, 2025 at 3:19 PM
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Abysmal? I’m clueless, but have read it’s a balancing act, flow rate versus filtering.
     
    #3 Mendel Leisk, Jun 9, 2025 at 3:34 PM
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