Ok I have been searching this for a few days now, and still really dont have any answers on this tick. 2014 M6 1500 miles. First oil change to Amsoil SS 10W-30. The tick came right after I did the oil change and for some weird reason seems to be linked to the AC being on?? I've seen TSB for this on 11-12's, have any of the newer 5.0 guys had this problem fixed? Is it really Ac related or is it motor related?? Why would it start after an oil change??