Do magnetic crankcase drain plugs make any difference?

I've had one of these on my cars since maybe 2004? Each filter cut has a minimal amount of stuff stuck on side of filter. Most of those vehicles also have a Fumoto or now Valvomax so plug is not coming out at changes. Fortunately, fingers crossed, I have not had any major mechanical issues like the rollers.

https://www.shopfiltermag.com/product-category/spin-on-filters/
1759062480505.webp
 
Has anyone acted on information derived from a magnetic plug in an engine? Found something on the plug as a clue and fixed it?

A customer of mine did.

He found a needle bearing on the magnetic drain plug and did a top end job (5.3) as consequence.
 
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after 24,000 miles and a bad rocker
24k between drains?

The Durango is not the only thing that has lost a rocker! :unsure:

Is the magnet doing something? YES, lest there would not be anything on the magnet.........is it doing anything that matters? Dont know. But I agree with others on the high miles without a magnet thing.
 
I look at the mag drain plug as a diagnostic tool that catches some things. (especially on a motorcycle that share the transmission with the sump)
The filter mag pulls out what the filter cannot from 2-20 um.
The main filter catches from 20 um and up. Unless the mags get it first.
 
What do you mean by sacrificed prior to that?

I meant, you didn't ask the engine and particularly the camshafts are they ready for that (JK).
First, I thought that that engine is prone to camshaft issues and that's nothing new. Then, I saw the OCI at 24,000 miles and thought that that's some sort of oil testing and the engine wear was expected and not taken in mind.
 
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First, I thought that that engine is prone to camshaft issues and that's nothing new.
The 3.2L and 3.6L Pentastar is known for rocker bearing failure, not cam failure. The cams get chewed up first by the shoulders of the rocker with the roller bearings fail, then the roller stops turning and that chews cam lobe.

Then, I saw the OCI at 24,000 miles and thought that that's some sort of oil testing and the engine wear was expected and not taken in mind.
I run extended oil change intervals with an engine oil that is formulated for extended drains. Normal wear is expected and my oil analysis history of this motor shows just that. The rocker bearing failure is not a lubrication problem.
 
I think that was some sort of oil endurance test and the engine was sacrifised prior to that.
No, that is absolutely not the case.

The engine was carefully monitored, as was the HPL oil, and at 30,000 miles, both were performing well.

No “sacrifise” needed. The engine continues to run well.

Read up before rushing to judgement.
 
No, that is absolutely not the case.

The engine was carefully monitored, as was the HPL oil, and at 30,000 miles, both were performing well.

No “sacrifise” needed. The engine continues to run well.

Read up before rushing to judgement.

Thanks, I did quick search and found the full story. No regular person runs those OCI unless he wants to test something. I'm sure it was well monitored. I was assuming, not judging, because I was not familiar with the experiment.
Now, I am:
 
Back to the magnet thing........

I can see the validity in it, I mean many transmissions have them stuck to the pan.....further some factory pans have bosses in them to raise the magnet off the surface and increase their holding surface area.

I think the issue is the specificity of the test to validate the results, meaning you would have to run several engines with the same oil, fuel, load, etc, blah blah blah........

I have changed my opinion to the side of maybe it does something worth while, but not sure that it makes a difference in engine life.....

Maybe they are intended to help removal manufacturing debris from the bottom of the pan. Most stuff is so small I can see it not settling to the bottom..........not sure.
 
I can see using a magnetic plug for the differential and on the transmission pan. I don't see a reason to use for the engine where the filter will trap the metal particles.
 
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