I wonder if I were to install the W/F filter and secondary filter from one of the newer Cat 6. 6L CR engines...
BTW. . just wondering, where is everyone getting the micron and efficiency ratings on the Cat filters??... I cannot seem to find them and would like to study them.
There are several Cat documents that have the ratings, but they aren't easy to find. The current data puts most of their filters at 4um absolute single pass. Their f/w seps are rated at 87% emulsified. There is some talk that the 6. 6L HPCR filters are a "true 2um", but as the NIST calibration standards have changed that's not ture and none of the data I can find has them rated any better than the 1R-0750 that many people use.
Donaldson seems to have the best media right now with 3um absolute. Baldwin seems to have the best f/w separation media, followed closely by Fleetguard.
Page 112/113 Some interesting reading... . Donaldson has went to the plate and is attacking the ISO/SAE ratings. . For years Some have Been preaching the ISO/SAE ratings as FACTS... The Beta readings CANNOT be Changed and Donaldson use these in comparison with ISO. . Beta is More accuated... I may start buying their filters based on Beta ONLY. I tip My hat to Donaldson.
http://www.donaldson.com/en/engine/support/datalibrary/070044.pdf
What's interesting is you have been told about ratings like this, and Donaldson filters, but just days ago you stated you cannot trust mfgr ratings and only will trust your bank account. This is why you are running a 23um absolute multi-pass hydraulic filter as the only filter on your HPCR, one that wants 5um absolute single pass per Bosch (I would think a guy who makes his living on CP3's would at least know these things).
All filters have to be rated to some SAE or ISO rating, like we have discussed before. The current rating for fuel filters is J1985, and ISO 16889 is a common hydraulic filter standard. B(3)=75 is different on a J1985 and a ISO 16889, and this blurb is very important. ISO 4406 (as mentioned on pg 112) is a hydraulic filter standard as well.
"Many application differences exist in engine
liquid filters that need to be understood to
begin to correctly apply a filtration media to
obtain a desired fluid cleanliness. For example,
is it a contained system like the lube oil system
where the same fluid is re-circulated and the
fluid will be put through the filter multiple times
(multi-pass) or is it a fuel system where the
fluid is consumed and needs to be cleaned in
one time through the filter (single pass). What
is the fluid cleanliness that is being started with
and what are the application environmental
conditions. These are just of few of the things
to consider when choosing the correct media to
apply. "
This is why I have attacked your position on filtration and providing false data to the forum. B(3)=75 is not always the same. If you are getting re-educated on filters then that's great, but it's not anything new around the forum.