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Old 11-25-2008, 11:50 PM   #1
rabbit92x
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Member#: 193899
Join Date: Nov 2008
Chapter/Region: NESIC
Location: Quincy MA
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2005 9-2x
Champagne

Default OIL Filter Magnet

I saw this on Oil magnet on ebay. Does this really help separate the ferrous particles in the oil?

The reason I ask if because I got my car used at 108K miles on it.

http://cgi.ebay.com/ebaymotors/Saab-...3A1|240%3A1318
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Old 11-26-2008, 12:10 AM   #2
djerickd
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02 WRX WFC#040
Clean on 19's

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yes that is what it does! I can see that plastic melting away tho. and it's overpriced
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Old 11-26-2008, 12:22 AM   #3
rabbit92x
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LOL where can I get it cheaper?
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Old 11-26-2008, 10:05 AM   #4
madmax718
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take apart a hard drive. There are usually 2 strong magnets in there. stick it on the filter, done.

SCSI hD's have stronger magnets than IDE. The older ones are stronger than newer ones.
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Old 11-26-2008, 10:06 AM   #5
djerickd
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Clean on 19's

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I would just go to Lowes and get one of the really strong magnets and stick it to your oil filter. I'm not sure how much ferrous metal it would catch tho as the motor is mostly aluminum and a good oil filter should catch the particles if there are any..
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Old 11-26-2008, 05:47 PM   #6
Unabomber
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I think it's pretty much a waste, but for less you can buy STRONG magnets online, Radio Shack, or the fence department of Home Depot/Lowes. Tape a couple of those heaps to your filter with electrical tape and swap them over with changes if you like.
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Old 11-26-2008, 07:34 PM   #7
magnum2066
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2009 WRX
Pearl White

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The filter does the job well enough, and has for many many years. It is a gimmicky product and wouldn't trust something with plastic to take care of a critical part of a several thousand dollar engine. Not to mention it being so close to hot components of the engine.
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Old 11-27-2008, 03:47 AM   #8
Rocketjones
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I think about it like this. Imagine that magnet holding on to a nice little whatever sized globlet of shaved up metals on the inside wall of your oil filter. Now imagine a "force" beit a spike in oil pressure etc. and part of that globlet of metal coming loose and traveling through your engine.
Sounds dumb to me.
YMMV
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Old 11-27-2008, 09:11 AM   #9
madmax718
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I dont think that is logical. All the shaved up metals is supposed to be caught by the filter media. Only ferrous metal would be caught by the magnet. These pieces could be large, could be small. (in the microns). Even if a spike in oil pressure, that globlet that your worried about isnt comming loose. I dont know exactly when you'd see a spike, since they usually are seen at startup (high pressure).

Assuming it did come loose, it would be immediately caught by the filter media. If not, it would just disperse, and get caught by the magnet the next time around. Yes, it does get the plastic hot, I dont have one, I dont know. Like I said, I just use a drive magnet, its cheap, and if it gets anything (other than metal shavings from the freakin ground) good, if it doesnt, not like I spent any money.
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Old 11-27-2008, 04:07 PM   #10
DC16A2
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I'm naturally skeptical of these devices.

In related news, for fuel economy, the EPA has a website dedicated to educating consumers on aftermarket fuel efficiency devices:
http://www.epa.gov/otaq/consumer/reports.htm
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