oil is black immediately after oil change

[Waterloo]

(04-09-2016 )rv4jesus Wrote:  Thanks for all the input but maybe I didn't clearly state my problem.

I understand the things that I could do to keep my oil clean between oil changes and I'm sure I should do an EGR tuneup as Rawze suggests. My problem is the oil is black on the stick as soon as it has been changed. What makes this happen? How would an EGR tuneup effect the color of the oil immediately after an oil change? As far as I know it is a Cummins 871 with the stock oil filters.

SOOT! These motors are SOOT MONSTERS! Until you do an MM you will not have that clean oil you are looking for. I did the EGR Tuneup, cleaned the entire system, etc. The oil went black almost immediately after the first post EGR Tuneup oil change. When I lost my DPF filter, I then eliminated the mandate and MM'd her. The oil was clean for the first 12,000 miles, than slowly darkened, but only after eliminating the mandate.