UOAs and Wear Metals Trapped by Oil Filters

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1,130
Location
California
If the oil filter is doing a good job, shouldn't many of the wear particles be caught in it rather than being left suspended in the motor oil? It seems that testing what comes out of the sump and ignoring whatever is trapped in the filter leaves out important information. Am I missing something? John
 
Messages
319
Location
N. Florida, USA
yes the spectral analysis that most of these labs use only "sees" extremely small particles in the oil much smaller than a standard oil filter can remove (+/- 25 micron ) and even still smaller that bypass filters can remove (supposedly <1 micron) you may be able to see the filters eff3cts inderectly by less/more wear metals caused by dirt particles [ April 30, 2004, 03:11 AM: Message edited by: RavenTai ]
 
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