Re: Metal flecks discovered during oil change

Sep 16, 2003 4 Replies

You'd better attach an oil filter magnet to stop circulating metal flecks into your engine.

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will be affordable.



Try cutting open the oil filter spread the element out and see what is
> trapped in there, check with a magnet for steel particles, see if you see
> the same particles that were in the oil.
>
> > Change the oil & filter cartridge every 3,000mi/3mo myself on Saturn L300
> > (3.0 V6 DOHC 24V) using Mobil 1 5W-30 and Saturn or NAPA Gold filter
> > cartridge since first change.
> > At 21,000 mile oil change I was pouring out oil caught from removing the > oil
> > cartridge (caught separate from crankcase oil), as sunlight hit the > plastic
> > pan I was draining from. What I saw were many microscopic flecks of metal
> > suspended in the oil. Maybe I had just never noticed this before, but it
> > looked something like the oil from a lawnmower after its first oil change,
> > where one would expect to find some suspended metal flecks. It would > appear
> > that the oil filter cartridge caught the metal flecks, but short of having
> > my oil analyzed by a lab (which analyzes oil from crankcase), any thoughts
> > on my observation at this many miles since engine was "broken in"?? > Should
> > I have it analyzed and if problems, take analysis to dealer while under
> > warranty, at least so it would go on the record for this car?? > >

I'd sure check with a magnet too because it's a cheap test. You may very well find that what you see is NOT metal at all buy carbonized oil or oil that has crystallized (not a chemical definition). You see it all the time inside the engine and it too can be abrasive, but not like metal.

One thing with a magnet, though, is that it won't attract lead, aluminum, copper and other non-ferrous metals.

Best to get the sample analyzed to better narrow down your problem. Also, you might want to re-think your drain interval if visible bits are present.

--- Bror Jace

Cut open the old oil filter. You'll see what's what then. I have never seen metal in engine oil that didn't mean bearings were shot or some other catastrophic failure.

Brian

Correction - except for old style Mini engines. They have the transmission in the sump of the engine, share the same oil, and always throw a lot of crap into the oil. Unless you are using bronze syncro rings, all of the transmission garbage is magnetic.

Brian

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