I typically like to see 1500ppm zinc and 1500 phosphorous.
We added our old additive to some off the shelf oil that is approved for use in DPF equipped diesel and we had 1129 phosphorous and 1375 zinc (ppm) with the same oil change and our new additive we had 1439 Phosphorous and 1675 Zinc (ppm)
There are some marine diesel oils that get close to 1400ppm without additives.
IF you need anything else, let me know.
Zach