I have a 07.5 6.7 cmc. I have been playing with the tune on it, running the tune for the last several months everything has been great. So a few weeks ago I updated my OS to a csp5 OS to be able to data log easier. No other changes were made to the current tune that was on the truck other than that. Since then, the overhead display keeps chiming that the oil change is due every few hours of run time. I reset the display and it goes away for a few days, but comes right back. Is this maybe got something to do with the tune or is there something else that might be going on? I was planning on putting the old, single tune back in to see if it goes away? Any ideas? Thanks