Yes, if it’s really coming apart you may may not see it. Spectrographic analyses do not show particles so if the failure is like that then it’s going to be filtered out at the machine. You have to do something more to detect it such as an acid digestion of the sample.This is what so conflicting about so many opinions and UOA reports, even to the ones deemed "normal" something sinister was lurking. I think I'm just going to put this to bed and enjoy the car, it's running flawlessly so I may very well be worrying about nothing.
Simple UOA show elements in solution and very small particles.