dnewton3
Staff member
I assume the OP didn't save the filter for a disection?
Quick Qs for clarification ...
- Does this application have a filter with the BP in it? Or is the BP in the engine block?
- which Isuzu filter is it? (I tried to look it up on Wix; can't find the application)
Being this is a reasonably new engine, I can't imagine it's sludged up.
I find it unlikely that the BP would somehow fail for some lengthy period of time (15-20 mintues upon every cold start), but then somehow magically cure itself as the run cycle continued. Generally if a filter goes into BP,
- it's for a very short duration (mere seconds at cold start until the dP equalizes across the media), or
- worst-case, the filter media is completely blinded off, in which case the BP would never re-seat while running
Yet, the description of the audible condition doesn't fit either of those scenarios.
20k km is only like 12.5k miles, right? That's not really a big stretch for oil or filters. I don't think the OEM recommendations are out of line here. Isuzu makes good little diesels; they're not new at this.
Quick Qs for clarification ...
- Does this application have a filter with the BP in it? Or is the BP in the engine block?
- which Isuzu filter is it? (I tried to look it up on Wix; can't find the application)
Being this is a reasonably new engine, I can't imagine it's sludged up.
I find it unlikely that the BP would somehow fail for some lengthy period of time (15-20 mintues upon every cold start), but then somehow magically cure itself as the run cycle continued. Generally if a filter goes into BP,
- it's for a very short duration (mere seconds at cold start until the dP equalizes across the media), or
- worst-case, the filter media is completely blinded off, in which case the BP would never re-seat while running
Yet, the description of the audible condition doesn't fit either of those scenarios.
20k km is only like 12.5k miles, right? That's not really a big stretch for oil or filters. I don't think the OEM recommendations are out of line here. Isuzu makes good little diesels; they're not new at this.
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