Let me guess . Fram the the worse one because of the carboard end cap ? That is pretty much mentally of every cars enthusiasm …
I need look up the episode .
I need look up the episode .
Enginemasters new episode 4/30 oil filter showdown!
- Thread starter dudemancool1904
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Annoying that u have to subscribe to streaming even though you pay for the cable tv channel. Double bump.
It will be on YouTube soon lol
You can watch it for free here https://upstream.to/yxn3h5w182c5 (Please delete if not allowed)
Uhh since when is KN gold 10 microns. Pretty sure those are rebadged champ filters.
Maybe 10μ "nominal", which is 50% efficiency.
The site is fine, overzealous software. Windows has good enough protection, just slowing your computer down using all that rubbish. You can choose from others: https://srsone.top/show/engine-masters-s06e05/season/6/episode/5
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Yeah but in the context of that episode they say all the filters have a 20 micron rating, Fram Wix etc, and KN gold has a 10 micron, and they're stating that as a positive for K&N.
I think they flubbed here.
OVERKILL
$100 Site Donor 2021
Yeah but in the context of that episode they say all the filters have a 20 micron rating, Fram Wix etc, and KN gold has a 10 micron, and they're stating that as a positive for K&N.
I don't think they understand the concept. Many of the filter manufacturers provide efficiency figures at 20 microns, but they are all different. Saying a filter is "rated at 20 microns" when one could be 88% and another 99.8% reveals that lack of understanding.
They were more concerned with flow rate which is the most important thing on a modified or racing engine. Micron ratings really only matter for longer OCI. If you change your oil under 3k or even 5k to a point you are removing all of the smaller 5-15 micron particles anyway before they can cause any major wear. Even with the best micron filter, on a long OCI those smaller particles are in the engine for much longer, you cant catch them all.
This is the opposite of true.
A filter will get more efficient with age. Initially those small particles will flow right through with a low chance of being stopped.
As larger particles are stopped it builds up a layer that will make it more likely to catch smaller particles.
At some point it builds up too much and is restrictive and you could have high pressure drop forcing bypass or reduced flow.
The only thing different on a long OCI is that the oil loses its effectiveness (lower TBN, viscosity shift, etc)...but filtration will improve up to the point that it is restrictive.
In racing higher flow is necessary. And wear will be higher. Hence why oil and filter should be changed very frequently.
But in most other circumstances a reasonably well maintained vehicle will never experience restrictive flow due to oil filter.
You would think particle count would increase for longer OCI or multiple oil changes on same filter...but there is data to the contrary because of the changing filter efficiency.
https://bobistheoilguy.com/forums/threads/amsoil-ea15k51-42-938-miles-with-uoas-and-pcs.255163/
This has been discussed a few times. Oil filters don't always behave like air filters when it comes to efficiency increasing with use. When @Ascent Filtration Testing shows his efficiency testing data you may see this phenomenon.
https://bobistheoilguy.com/forums/threads/cut-open-pureone-pl12222-8-811miles.330831/post-5502627
Sure, from that referenced report:
"measurements performed on filter media sometimes contradict this assumption"
"we report on multi pass test results for an oil filter media exhibiting a non-intuitive filtration behavior"
It seems like that thread ended without a real decent conclusion because of the emotions. But the report makes it clear that those results are not necessarily typical and may in fact be the outlier due to filter media used or some other aspect.
(and admitedly i didn't read the whole thread throroughly...so cut me some slack if I'm off base)
It can also be said that smaller particles are less relevant to wear...so changes in particle count at 4, 6, 14 microns may not be relevant at all.
All I'm saying that it's a misconception for someone to say that ALL filters get more efficient as they load up with use. That research wouldn't have been done if only a few out of 100s of oil filters exhibited that behavior. I was told by Purolator years ago when I asked their engineers about how efficiency changes with loading, and they described what they called the "hockey stick" efficiency curve ... which is exactly what the graph shows.
Like I said, maybe we will see this same phenomena with the testing that @Ascent Filtration Testing is currently conducting for the board.
https://bobistheoilguy.com/forums/t...essure-vs-flow-bubble-point-and-burst.334882/
That's a misconception too ... go do some research and you will see many studies that show that particles less than 20 microns actually do the most wear.
I have always wondered if the majority of the motoring public even knows what type of oil filter is on their vehicle.
I’ll include oil as well...
Also wondered how many engine failures are really attributed to oil and/or oil filter issues in vehicles produced in the last decade.
Folks like us on this site care but we are probably .0001 of 1 percent of the population of automobile and truck owners.
I’ll include oil as well...
Also wondered how many engine failures are really attributed to oil and/or oil filter issues in vehicles produced in the last decade.
Folks like us on this site care but we are probably .0001 of 1 percent of the population of automobile and truck owners.
OVERKILL
$100 Site Donor 2021
They used an unrealistic scenario with cold temps and probably an HV pump. As I noted in my analysis, the engine was on the relief the entire time and flow rate was still excellent for all filters tested.
Unless you are on the relief, the flow is going to be the same, which is a point that's been made a million times on here.
The idea of using a filter that's more efficient at a smaller particle size is to catch the ones that are large enough to cause damage. You don't need to catch them all, particularly the really small ones (below 10 microns), you just need to capture (and hold) the ones that are big enough to increase wear. The glass media filters are an excellent fit in these scenarios offering both higher filtration efficiency and better flowing media (fewer bypass events).
The oil wasn't cold, it wasn't replaced with every filter. It wasn't in relief, flow is going to be the same, its a myth, look at the mesh filter they used. Long OCI with a high micron filter still ends up with more damaging particles (5-15 micron) then short changes with a filter not as efficient and they are in the engine for longer.
OVERKILL
$100 Site Donor 2021
Did you even look at the post I mentioned? Judging by the above, I'm going to say no. Do you know what the factor relief pressure is on an SBC oil pump?
Read this post before you respond to me again please:
https://bobistheoilguy.com/forums/t...il-filter-showdown.340735/page-2#post-5760711
Just a hint on the SBC front:
The 58psi spring is VERY common and comes in the HV pumps. The pink spring is included in the HV/HP pumps, so measuring pressure after the filter, assuming ~4-5psi drop across the media, 66psi is on the relief already.
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What are the personal conclusions? Mine is I have yet to see a good particle count test from any full flow filter. I have experience in grinding and polishing optics. If the particles are hard like used for abrasives, 4 and 6 microns are damaging. It has to be sub micron really to not grind, or 1 micron which is like a pre-polish grit size.
So my conclusion personally is to keep oil changed at 5k intervals, unless using a sub micron bypass oil filter. New engines are cleaner running maybe it is not absolutely necessary to do 5k. I will do it anyway.
It seems people can make a personal conclusion at some point and get on with it. I suppose then there is no reason for an oil forum to argue it out endlessly.
So my conclusion personally is to keep oil changed at 5k intervals, unless using a sub micron bypass oil filter. New engines are cleaner running maybe it is not absolutely necessary to do 5k. I will do it anyway.
It seems people can make a personal conclusion at some point and get on with it. I suppose then there is no reason for an oil forum to argue it out endlessly.
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