Without knowing too much else the copper seems high. And the TBN seems low. I would not listen to BS's sugegstion to run it to 10K OCI. Your 7500 seems about it for the oil. BS seems to want to push people to go farther and farther on OCI.
Oil cooler? Any reason for copper to be high? Your lead is zero so thats good. When both lead and copper start to go up then something is definetly up.
What is the TBN in a VOA of this oil?
No oil cooler. The copper is 25% below the universal averages. I believe is a previous UOA, they mentioned the universal average numbers are based around the 7500 mile mark.
I agree where 7500 miles on this oil/engine combo is close enough to give me some leeway if I need a few more days before I'm able to find the time to change the oil.
I'm very happy with these results. The oil currently in the crankcase is rotella gas truck and will post results next oil change.