After I switched to full synthetic, I decided to do shorter OCI and didn't reset the system. At that time oil life was at 50%. I hardly drove over 900 miles and now oil life is at 30% and has been like this for 3 weeks. I am expecting maintenance minder to let me know soon.It's been about a month, did you swap out the filter? It was probably a leaky filter ADBV if it was only cold start-up noises (per info in post #30) that weren't there before the oil and filter change.