You've shown that prior.
I'd certainly be pleased with the initial catch and progress.
The extension into the pan no doubt helped.
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I got my pair of Filter Magnets installed today.
- Thread starter Carlostrece
- Start date
I'd certainly be pleased with the initial catch and progress.
The extension into the pan no doubt helped.
Carlostrece
$100 Site Donor 2025
A Filtermag could have for certain caught it sooner because a pair of Filtermag could been installed before driving off the dealership's lot, and a pair of Filtermag provides a much larger surface area than any magnetic drainplug.
That said, I also have a magnetic drainplug (Goldplug).
Carlostrece
$100 Site Donor 2025
Filtermag wraps around outside of oil filter, thus grabbing magnetic metallic particles from the oil before the oil goes through the oil filttation media.
Thus Filtermag and Magnafilter are a prefilter for ferrous particles. The oil filter's filtration material (cellulose for example) is the 2nd stage of filtration for ferrous particles.
This makes it difficult to know how much of the ferrous particles the filtration media would have caught if there was no magnet. Thus all the debates and discussion regarding effectiveness of magnet(s).
I think the best testing method would be to have a post-filter magnet in the outflow oil coming from the filter. Then compare (over 5K or 7K OCI) how much metallic crud the outflow post-filter magnet caught with and without Filtermag prefilter installed over the inlet flow.
To do a proper test of what an oil filter misses that a magnet grabs, we need to figure out a (safe) way to put a magnet in or around the outflow. i.e. - we need a post filter magnet for testing purposes.
Thus Filtermag and Magnafilter are a prefilter for ferrous particles. The oil filter's filtration material (cellulose for example) is the 2nd stage of filtration for ferrous particles.
This makes it difficult to know how much of the ferrous particles the filtration media would have caught if there was no magnet. Thus all the debates and discussion regarding effectiveness of magnet(s).
I think the best testing method would be to have a post-filter magnet in the outflow oil coming from the filter. Then compare (over 5K or 7K OCI) how much metallic crud the outflow post-filter magnet caught with and without Filtermag prefilter installed over the inlet flow.
To do a proper test of what an oil filter misses that a magnet grabs, we need to figure out a (safe) way to put a magnet in or around the outflow. i.e. - we need a post filter magnet for testing purposes.
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It would be easier to do a test like I described in post 33. Run the oil 7K miles, take some UOA samples, then put some super strong magnets all over the steel oil pan, drive another 200 miles and do some 2nd UOA samples. Send samples to 3-4 different test labs for accuracy comparison. Could even drop the pan with the magnets still installed on the pan and look at what they caught.
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Yeah, if I had a Filter Mag back then I would have installed is right away ... would have been beneficial for the main break-in.
Carlostrece
$100 Site Donor 2025
You have a good idea. I like it!
Filtermag makes a flat magnet that's for installing on bottom exterior of a trans pan. You could put one or multiple on bottom of engine oil pan, or any other brand of flat neodynium magnet could be put on bottom exterior of engine oil pan.
I do not recommend putting a magnet inside the oil pan. If it came unstuck for some reason, you wouldn't want it inside the pan, IMO.
I've handled the mags that are supposed to go in the center tube.
No friggen way. Those magnets aren't strong at all.........I could see a really strong neodymium magnet, but they weaken with heat.
No friggen way. Those magnets aren't strong at all.........I could see a really strong neodymium magnet, but they weaken with heat.
Based on the below I presume you think it will not have much magnetic attraction capability. Let me know what I can try to see if it sticks to it or if there is something I can get like a suspension of particles to swirl around or just pour into empty can and then apply magnet to see how far it pulls. Colored particles in a clear liquid would probably be best for viewing.
If you had magnets of varying flux and cut steel filter can you could see possibly given some liquid with suspended iron perhaps
I have some magnets- some very strong and a few cut cans. Busy most of tomorrow
Possibly could even collect iron from dirt- soil around here
There was a thread awhile back where someone showed a model of the magnetic field of a filter magnet like a Filter Mag design. It's obviously strong enough to attract particles in moving oil between the can wall and media, and hold ferrous particles to the inside of the filter can. If it wasn't, then we wouldn't see the visual patterns of the debris stuck to the filter can wall.
I’ve seen that. And those magnets are strong- even in that cheesy video you can see the magnets are quite strong
My point was to show perhaps that strength matters. Kiddy magnet won’t work though a steel can
Ideally would be a good magnet bonded outside of a non ferrous surface
Filter Mags have super strong, heat resistant magnets. Some people here have used old computer hard drive magnets on the filter can, which are super strong, and have shown that they caught a lot of debris on the inside wall of the can. I've even used some pretty weak magnets by comparison on oil filter cans just to play around with, and even they will catch some ferrous debris that can be seen on the inside the can wall. Just because it's stuck to a steel filter can doesn't mean it's useless. But of course the stronger the magnet the better.
Me either, even those strong button ones attached to baseplate/ inlet scare me. The snap on outside of filter can I'm good with.
Then again manufacturers have been installing magnets inside tranny pan for a long time. I recall always cleaning the grey goop off them when I did tranny filter changes back then.
I also like the Magnefine inline ones that can be used on power steering or transmission cooler lines. You never know what they may catch either and at least an easy change/check/dispose like from my '19 Pilot. Never know what it might collect over the course of 3 years and maybe 20k miles.
Depends on the thickness of the can as well. I used to run magnets on my old Volvo with dual filters. Old strong hard drive magnets. Never captured much anything. Not saying nothing was caught but by the time I got the filter removed and cut without disturbing any possible iron I didn’t see much and figured it was indeed disturbed
How many miles were on that engine, and what oil viscosity was being used? What was the OCI length? Could be it wasn't generating much depending on those factors, so there wasn't much to capture. The debris on my magnetic drain plug is way less after the break-in was totally complete. A short OCI isn't going to show as much collected ferrous material as a much longer OCI. Even one engine vs another might show more wear particles under the same OCI, oil viscosity and AF/AW formulation, and operating conditions due to exactly what materials and heat treatment was given to the ferrous parts. That can matter wrt wear with parts in boundary and mixed lubrication.
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