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oil change lab results

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by has been, Jul 13, 2012.

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  1. xs650

    xs650 Senior Member

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    Except for the exaggerated detail in their particle counts, Blackstone is good for the price. Since very few people get particle counts they are OK for most people.
     
    #21 xs650, Jul 16, 2012
  2. has been

    has been vote for anyone except Trump

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    rrg - xlnt question:
    The magnet was originally attached (glued) to a plastic strip that I drug thru the freshly drained oil. The bond to the mag came off (evidence of that in one pic as a oval-shaped design that looks like dried glue) and the mag sat at the bottom the plastic container (covered) for a few days.
    I was a little surprised that the oil was as dark as it was because the filter was not overly contaminated or discolored.
    The magnet was extremely clean and sharp-edged (was brand new, hand cleaned) and the pics do show some fuzziness of attracted matter (FoAM) to the magnet.
    Will be interesting to see if the newly installed mag-plug will attract anything at the next drain interval.
    I'm sure it will.
    That's what it does.
    That's why it's there.
     

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    #22 has been, Jul 18, 2012
  3. xs650

    xs650 Senior Member

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    Another valid reason for a magnet in the oil is that the rate of metallic fuzz accumulation gives insight into how fast the transmission or engine is consuming itself.
     
    #23 xs650, Jul 18, 2012
  4. rrg

    rrg Active Member

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    Ah, very good visual on the magnet.
    I added a magnet drain plug and have done only one oil change on it at 10K miles.

    My observation leads me to believe the small tip of my plug magnet does not attract all the material you found in the container with the larger magnet.

    So my plug works but not as complete as you might think.
    A wrap around magnet on the outside of the oil filter would be a good experiment.

    I'll drop a magnet in the oil change container next time. I have plenty of super strong hard drive neodymium magnets that I salvaged from old drives.


    my2cents.
     
    #24 rrg, Jul 18, 2012
  5. has been

    has been vote for anyone except Trump

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    I'm guessing that a mag-tipped plug will collect more than the method I used.
    Not that it will collect more, it will collect more of what's available at the time.
    The plug is a much stronger magnet and will be basically "in" the flow of oil for quite awhile.
    My magnet in the pan sat at the bottom, was not very strong, and surely did not show any FoAM from the outermost parts of the container.
    I don't believe that the weak magnet pulled all available debris from the container.
    Although I've normally waited thru a 500-1000 mile break-in procedure before replacing dyno with synthetic I am not unfamiliar with the larger reservoirs, finned for cooling, nicely machined covers etc, with mag plugs.
    This will be my first mag plug in a stock sump.
    First synthetic fill from the factory.
     
    #25 has been, Jul 18, 2012
  6. LTZR1

    LTZR1 Member

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    I seeriously doubt you have any ability to sell the big orange bridge...just as I doubt your abilty to determine oil shearing. And as was stated, we don't use Blackstone. We use Terry Dyson who provides the most complete and
    comprehensive analysis you will find anywhere. And.....most here won't pay what a Dyson Analysis costs...you included...obviously !
     
    #26 LTZR1, Jul 21, 2012
  7. xs650

    xs650 Senior Member

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    You said
    You later corrected that spec to ISO 4406. Unfortunately, ISO 4406 also doesn't define particle testing as you said it did. It only defines how particle counts are converted to ISO cleanliness codes. I was responding to that. Dysan Analysis had nothing to do with the your misinformation that I was correcting.

    The topic being discussed was a weakness in the Blackstone particle testing procedures, not Dysan Analysis. Try to stay on topic.
     
    #27 xs650, Jul 21, 2012
  8. BruceInOKC

    BruceInOKC Member

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    LTZR1, I'm a loyal Dyson Analysis and DMW customer. I've been on BITOG since 2004 (Bruce T). Honestly, I don't think you know who xs650 is. The late Gary Allan once told me that the two high-powered brains on BITOG who fostered him as a plebe (his words) were XS650 (a retired military veteran) and 427Z06 (who last posted in March 2007). Terry Dyson, xs650, and 427Z06 are humble and knowledgeable. Their BITOG discussions go back to 2004. XS650 knows Terry: he previously recommended his services and questioned Helen's decision to kick him off.
     
    #28 BruceInOKC, Jul 24, 2012
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