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Featured Test shows why you need to change oil often, if you use Toyota oil filters

Discussion in 'Prius, Hybrid, EV and Alt-Fuel News' started by Georgina Rudkus, Feb 14, 2024.

  1. Georgina Rudkus

    Georgina Rudkus Senior Member

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    Toyota oil filters are designed to a higher flow rate than other brands of oil filters. That also means that it only traps larger particles than others. That's why a more frequent oil change interval means less engine wear.

    Check out this YouTube video.

     
    #1 Georgina Rudkus, Feb 14, 2024
    Last edited: Feb 14, 2024
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  2. Doug McC

    Doug McC Active Member

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    Interesting and informative.
     
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  3. PriusCamper

    PriusCamper Senior Member

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    This is a good reference for the people who blindly insist that OEM is always better than non-OEM. You literally have to compare an OEM part with and aftermarket part for quality of materials & build, as well as measure its performance.

    And it can save you lots of money.

    For example a $15 aftermarket O2 sensor I bought once has been working great for years.
     
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  4. Georgina Rudkus

    Georgina Rudkus Senior Member

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    Oil filter design is a compromise between flow rate and its ability to trap detritus.

    Oil starvation is as bad as wear from suspended abrasive particulate matter. Variable valve timing needs oil pressure to operate. Slow oil flow might result in a rattle at ICE startup.

    I'll keep using Toyota filters, since they are designed to curve oil starvation with cold starts.

    The best of both worlds is frequent oil changes. A 10k oil change is too long an interval.
     
    #4 Georgina Rudkus, Feb 14, 2024
    Last edited: Feb 14, 2024
  5. ColoradoCrow

    ColoradoCrow Active Member

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    Yeah. I only use Toyota Filters, Mobil 1 and change at 5K miles. The oil and filters are peanuts compared to major engine work.
    When I was doing a lot of miles during the pandemic. I would rotate tires AND change the oil every 3 K.
     
  6. Mr.Vanvandenburg

    Mr.Vanvandenburg Senior Member

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    So the oil pump breaks?
     
  7. Georgina Rudkus

    Georgina Rudkus Senior Member

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    Oil pumps are simple mechanical devices that usually lasts the life of the car. It's the variable valve timing controls with their narrow passages that malfunction from clogging or oil starvation.
     
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  8. PriusCamper

    PriusCamper Senior Member

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    Preventing that rattle at start up is probably the most practical reason for buying a http://www.redbullet.net

    Had not thought of it till now but I put one in my daily driver in March 2020 and just now realizing that it never has that rattle but other people's Prius work on do, especially the ones who are negligent when it comes to changing their oil regularly.
     
    #8 PriusCamper, Feb 14, 2024
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  9. Doug McC

    Doug McC Active Member

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    Yep!
     
  10. Doug McC

    Doug McC Active Member

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    Yep! :)
     
  11. Doug McC

    Doug McC Active Member

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    With a small amount of luck this thread just might educate a few people. Great post Georgina Rudkus.
     
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  12. Georgina Rudkus

    Georgina Rudkus Senior Member

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    There is another reason for maintaining a good flow rate with the Toyota OEM oil filter.

    Circulating oil is a coolant for removing heat under high operating temperatures.

    Slower oil flow can lead to overheating under high loads in high temperature conditions.
     
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  13. Trollbait

    Trollbait It's a D&D thing

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    Not all the particles in motor oil are abrasive. Homogenized whole milk is filled with particles, the fat. As the oil degrades with use, it forms larger molecules. Eventually, those molecules formed are ones that are no longer soluble in the oil. They are particles, and will get caught in the filter, but they won't wear engine parts. Their danger comes from forming sludge deposits.

    Considering the amount of wear metals in used oil tests is very small, the majority of what the filter is catching is likely those degraded oil particles.
     
  14. Mr.Vanvandenburg

    Mr.Vanvandenburg Senior Member

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    Flow is by the speed of the oil pump. If the back pressure gets too high there is a relief valve that opens to prevent the pump drive from breaking.
    The Delco PF53 in the video has a combo valve that works like the Motorcraft. They should know that. The Toyota bypass valve poppet is like hard plastic, they call it rubber. Fram and others are about the same and work the same. The Toyota end seals are perfect for sealing the bypass and anti drain valves. No splattered glue inside the filter waiting to go into the engine.
    Engines put tiny amounts of particles into the oil which circulate many times. Like 4 gpm is 16 qts per min or a circulation of all the oil like in 20 seconds or less for most cars. The video test doesn’t test the efficiency of the filters like that. I think they would find Toyota knows a thing or two about what is best for an engine. Not that the other filters are bad for being better in their experiment, it just doesn’t show much of anything which is really better. Need a test that mimics what the filter actually does. Much more difficult to do and time consuming.
     
    #14 Mr.Vanvandenburg, Feb 15, 2024
    Last edited: Feb 15, 2024
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  15. ColoradoCrow

    ColoradoCrow Active Member

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    Interested in The Red bullet. I looked at the install instructions and it seems simple. I'll look in the engine bay on my Gen 2 and see if I can locate the install area.
     
  16. Trollbait

    Trollbait It's a D&D thing

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    Their test rig is a simplified version of what the ISO 4548 oil filter test standard uses.
    https://cdn.standards.iteh.ai/samples/10474/84dd3d1dc2cd49369ffd0999a5811b55/ISO-4548-12-2000.pdf
     
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  17. PriusCamper

    PriusCamper Senior Member

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    Back when they charged 1/2 as much for it I was a big fan and told people to get them... Most noticeable benefit is the classic Prius lull / latency you get when you pull out onto a road into fast moving oncoming traffic and you floor it you get a faster response time.
     
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  18. hill

    hill High Fiber Member

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    best example of that is our diesel sprinter. We change the oil before winterizing & by the time we get it home from the shop, it's already turned dark.
    .
     
  19. Mr.Vanvandenburg

    Mr.Vanvandenburg Senior Member

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    Simplified I guess is the point. Engines don’t contaminate the oil fast, and the oil circulates many times. If a filter has less restriction, it may have some open pores. A scant concentration of a few particles is far less likely to hit a void in the element, and if it does, 20 seconds later it is even more unlikely it will hit a void gain.
    Using a high concentration of particles changes that. Many will find voids the first and early passes. How long does the real standard test last versus the guys?
    Maybe this is why Toyota does what it does, to no detriment to an engine. It’s also important for restriction to be balanced not to cause bypass in the filter, or worse the oil pump relief opens and the flow drops.
     
  20. Trollbait

    Trollbait It's a D&D thing

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    Lab time costs money. The test details are behind a paywall, but it sounds like it runs until the bypass valve on the filter opens or the element fails. A lab isn't going to run a filter for the weeks for that to happen with a filter on a car. Adding dust at a slower rate isn't going to change the numbers of the results.