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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