Yeah did it this morning and now i have a new noise to listen to, a sort of light tapping sound at low revs but only i can hear it wife not hear it at all

. Anyway oil and filter change tomorrow and clean the separator , Oil is very black ( i know diesels ) but has any of you come across the oil pick up in the sump becoming blocked in the 2.5 . Tell you i am becoming paranoid , not paid any attention before , not sure why i am now.