Ahhh, now it makes sense, a diesel. Once changed the oil and filter on one of those fine GM diesel cars back in the late 70's. Dirtiest (black) looking oil and filter I had ever seen. I remember how I could see the dark black oil in the grooves of my fingers after the change.
Funny thing, after the change and the starting the car, the oil looked almost as black right after.
As for the filter, I prefer metal endcaps, but the holes don't look good. I'd likely switch brands.
BTW, thanks for posting the pics!
Unfortunately since I didn't have the recommended P502046 in stock I went out and bought them another Mann. Then in consultation with Donaldson Techs I found out that I can use the P550947 which is 30% more efficient (microns), larger, and rated for higher pressures. And still cheaper than Mann. So next time we will use the Donaldson.
Yea,my first reaction was that the filter was spent, all used up. Not over used though. I was wondering about it being only 4K but diesel makes more sense.
Yr right ...candidate for larger filter if OCI >4K.
It is a tire delivery truck for the retread plant. I don't have the service records here at home, but it comes in every couple of months. They only work about 35 hours a week, some of that loading and unloading with the engine off.