Hello guys,
I am running a 2 micron Racor filter (R445) before the OEM filter (CRD).
I have done an extensive evaluation of the advantages of having a second filter and the importance of 2 micron filter - these are not just forum talks but all from reliable sources (Donaldsons / Bosch etc.)
The filter is filtted 600k's ago and still going great. I also fitted a restriction indicator with WIF sensor.
I am not sure whether I am allowed to say this but on the other forum, there is a good discussion with all my points on a 2micron second filter.
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