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#4506097 - 09/03/17 09:41 AM Who here runs an oil filter or oil pan magnet?
ZZman Offline


Registered: 03/17/08
Posts: 5790
Loc: Michigan
I have been running oil filter magnets for years now. Cut some filters open and was surprised what they captured.
How about you guys?
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#4506114 - 09/03/17 09:55 AM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
Leo99 Offline


Registered: 03/30/14
Posts: 3052
Loc: NJ
Wouldn't what the magnet captured have also been captured by the filter media?
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#4506129 - 09/03/17 10:17 AM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
40w8 Offline


Registered: 12/24/14
Posts: 77
Loc: Texas
I put a few strong magnets around oil filter.

We all have seen pics of powdered iron caught by these things.

These iron particles would go right through filter.

I'm not OCD about oil change, and haven't changed in 6 years, but only 6k miles.

Oil looks good and will get UOA next spring.

This is rotary engine RX8.

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#4506132 - 09/03/17 10:20 AM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
Jarlaxle Offline


Registered: 02/02/12
Posts: 8163
Loc: New England
My Caddy has a magnetic drain plug.
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#4506135 - 09/03/17 10:23 AM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
UncleDave Online   content


Registered: 06/02/14
Posts: 1638
Loc: Ca.
Run both.

Best supplemental filtering aid you can get.

Those super fine particles will go round and round through your filter and parts.

If Filtermag is to be believed running one of their units will result in a full ISO code drop or better which is significant improvement.

Pop one on a motorhome or marine engine, or tractor and you'll be amazed what a power plant under a sustained high load (not a regular car) will put out.


UD


Edited by UncleDave (09/03/17 10:25 AM)
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#4506136 - 09/03/17 10:23 AM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
spasm3 Offline


Registered: 05/30/10
Posts: 8662
Loc: North Carolina
Magnetic drain plugs, i recently made my own.

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4465589/Re:_How_are_magnetic_drain_plu#Post4465589
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#4506217 - 09/03/17 11:54 AM Re: Who here runs an oil filter or oil pan magnet? [Re: UncleDave]
philipp10 Offline


Registered: 05/09/14
Posts: 1180
Loc: Minnesota
Originally Posted By: UncleDave
Run both.

Best supplemental filtering aid you can get.

Those super fine particles will go round and round through your filter and parts.

If Filtermag is to be believed running one of their units will result in a full ISO code drop or better which is significant improvement.

Pop one on a motorhome or marine engine, or tractor and you'll be amazed what a power plant under a sustained high load (not a regular car) will put out.


UD


You realize that a 10 micron particle, which they readily filter at 95% is almost un-seeable....right?


Edited by philipp10 (09/03/17 11:56 AM)

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#4506247 - 09/03/17 12:22 PM Re: Who here runs an oil filter or oil pan magnet? [Re: Leo99]
ZZman Offline


Registered: 03/17/08
Posts: 5790
Loc: Michigan
Originally Posted By: Leo99
Wouldn't what the magnet captured have also been captured by the filter media?


I suppose that would depend on the quality of the filter and if it ever went into bypass mode or had a media or end cap failure.
_________________________
2003 Mercury Grand Marquis. Rotella T6 Multi-Vehicle oil
2008 Sebring Hardtop convertible. Rotella T6 Multi-Vehicle oil
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40

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#4506272 - 09/03/17 12:56 PM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
VNTS Offline


Registered: 03/01/07
Posts: 1643
Loc: NE
Run the gold drain plugs

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#4506306 - 09/03/17 01:50 PM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
Dyusik Online   content


Registered: 09/26/14
Posts: 1984
Loc: US-WA
I have a magnet on the plug of each car, tranny and diffs included. Harley and my lawnmower does not have a plug, so the both have a magnet on the dipstick. I buy my own N52s, stack them onto the plug/or whatever else and epoxy them in place. I have lost a few magnets in the Jeep to the steel oil pan, hence the epoxy.
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#4506349 - 09/03/17 02:51 PM Re: Who here runs an oil filter or oil pan magnet? [Re: VNTS]
Bud Offline


Registered: 06/04/02
Posts: 1721
Loc: Texas
Originally Posted By: VNTS
Run the gold drain plugs


This is what I use.
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#4506355 - 09/03/17 03:00 PM Re: Who here runs an oil filter or oil pan magnet? [Re: philipp10]
Ethan1 Offline


Registered: 12/29/14
Posts: 1632
Loc: 'murica
Originally Posted By: philipp10
You realize that a 10 micron particle, which they readily filter at 95% is almost un-seeable....right?


A blood cell is microscopic, but you have seen blood... right?

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#4506358 - 09/03/17 03:06 PM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
i_hate_autofraud Offline


Registered: 05/19/16
Posts: 705
Loc: Canada
Yup!

I started to run FilterMags a few years ago after looking how much got caught in the transmission pan!

Iím using a PAIR of FilterMags and more neodymium bar magnets on the empty spaces around the filter
the FilterMags doesnít cover.

Over the years Iíve tried most major brands of oil filters, in each case the engine oil darkened just as quickly.
In vintage cars hi blow-by can allow soot to darken oil. In late model cars, blow-by is a lot less, itís mostly wear metals.

Iím up to 8 months before then engine oil darkens instead of 2 months! The UOA come back with lower metals across the board.
I figure with 50% less iron allowed to circulate in the oil then wear to other parts including lead babbit main bearings drops to.
So far lead is at < 1PPM - meaning ďtrace levelĒ only, kinda nice!

I use a drain plug mag too with a 1Ē long mag built in, but no accumulation on it for the last 3 years. My PPMs overall are fairly low anyway.

Since oil pan steel is .080Ē or thicker, magnets on outside of steel pan have little effect in the oil pan, plus you canít clean off
the inside. The steel shell of a spin-on filter is under .020Ē thick so FilterMags and bar mags work well, when get rid of the filter
you get rid of the metals too!

Since oil filters are specíd around 95% (at 20 microns) all the stuff picked up is way smaller and never gets caught in filter Ė just the magnets.

I tried whatís in this PDF, lots of good pics too:


FILTERMAG vs HOMEBREW
https://app.box.com/s/uxvu8dmscf5wcgftutdm0ejqwgn86tw7

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#4506364 - 09/03/17 03:14 PM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
SnowDrifter Offline


Registered: 08/24/14
Posts: 391
Loc: WA
I have a magnetic plug. Can't say I've ever found anything stuck to it but it's there

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#4506391 - 09/03/17 03:57 PM Re: Who here runs an oil filter or oil pan magnet? [Re: ZZman]
VNTS Offline


Registered: 03/01/07
Posts: 1643
Loc: NE
I have run the Goldplugs, always a small amount of gray paste on them when I drain the oil.

I would assume the filter mags work even better.

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