A quick seach on the web lead to the following site that has test results of
a select few filters:
http://mr2.com/TEXT/oil_filter_test.html
At least this comparison uses actual filtration test data rather than
subjective inspections of the filter internals
> ----------
> From: Doug Mallory[SMTP:rdmallory@earthling.net]
> Reply To: Doug Mallory
> Sent: Thursday, April 01, 1999 11:32 AM
> To: tigers@autox.team.net
> Subject: [Fwd: Oil Filters] From the NCAC list
>
>
>
> Rex Weatherford wrote:
>
> > I was wondering if anyone else out there has done any research on oil
> > and oil filters.
> >
> > My filter studies over the last two days have directed me to this
> > document:
> >
> > SAE Document
> >
> > Document Number: J1858
> > Date Published: June, 1988
> > Title: Full Flow Lubricating Oil Filters
> > Multipass Method for evaluating
> > filtration Performance
> >
> > Issuing Committee:
> > Filter Test Methods Standards Committee
> >
> > Scope:
> > This standard establishes a multipass
> > filtration performance test with
> > continuous contaminant injection for
> > lubricating oil filter elements. It also
> > includes a procedure for determining the
> > contaminant capacity, particulate
> > removal characteristics, and pressure loss.
> > It also includes a test currently
> > applicable to lubricating oil filter
> > elements which exhibit a 10 um filtration
> > ratio of less than 75 and a rated flow
> > between 4 and 600 L/min. This
> > standard provides a test procedure which
> > yields reproducible test data for
> > evaluating the filtration performance of a
> > lubricating oil filter element.
> >
> > I also see Mobil 1 point towards document j806.
> > Purolator points towards j1858 for multiple pass filtration
> >
> > Are these the same tests at different dates?
> >
> > Here are the filters results:
> >
> > Mobil 1: Single pass efficiency (SAE J806) of 98% vs. an 85% average
> > for conventional filters. * Multiple pass efficiency (SAE J806) of 95%
> > vs. an 80% average for conventional filters.
> >
> > PureOne: Single Pass Test efficiency for the PureONE filter is 99.7%.
> > PureONE captures 96% of all contaminants as measured by the
> > Society of Automotive Engineers' (SAE) #J806
> > Multiple Pass Test. *
> >
> > Hey look I think I may have answered my own question. Both reference
> > j806. Never noticed that before!
> >
> > Anyone have comments or more information on filters or oils? How much
> > does a Mobil1 filter cost. The PureOne filter was $5.99 at PepBoys.
> >
> > --
> > Rex Weatherford
> > 92 Beretta GTZ 2.3 89,000 miles
> > 89 Beretta GT 2.8 150,000 miles
> > #22 GS Atlanta Region SCCA Solo II G-Stock
> > 95 Grand Am GT 3100 V-6 (can't get my wife to let me race it)
> > http://www.mindspring.com/~rweatherford/rexw/rexhome.html
>
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