ISX 475 oil leak

[Wiseman]

Let’s not worry about crankcase filter for now . Signature 620 asked for a picture for a reason. This will determine what engine you have and we’ll go from there.
ISX family started with CM570 and Signature/ fixed vane / non VGTurbo .
So we can say first generation ISX .

Then came up CM870 with air actuated VGTurbo and EGR .
So we can say second generation ISX .

2002 can be either of first two .

Then came up CM871 with electronically actuated VGTurbo , EGR and DPFilter + crankcase filter .
So we can say third generation ISX .

So far I have to see crankcase filter on first two yet .
Got to focus on this serious blow by and power loss that can be for many reasons.

So , what engine you have ?

Edit :
If it’s not too much , mod please move this one to ISX related help , so it doesn’t get lost ?