About 30K miles ago I started noticing metal flakes in the drain pan. I figured they were residual when i first noticed them from when a timing chain tensioner broke and the chain was hitting the front cover. Did a UOA when i first noticed them and came back perfectly fine. This engine has aluminum rod and main bearings --- aluminum wear was at 2ppm, Iron at 5PPM and copper, which was marked as slightly elevated, was at 7PPM. Fast forward 20K miles from that UOA, changed oil yesterday, and TONS of metal both from the oil inside the filter, and from the pan. Cut open the filter and the pleats are clean. No metal in there. The oil that came out of the filter had lots of fine dust in it, and you could clearly see it. The pan was also riddled with metal debris. (See images). Metal is magnetic as well so i doubt its a rod or main bearing. Oil pressure is normal. 20 psi at idle at above 70psi at 3000 rpm. This is a F150 with a 4.6L. Has 223K on the clock. It sounds brand new. Makes no abnormal noise at all. No lifter tick or lower end noises. Doesn't make any since. Id think that if something was producing this much metal, it would be noisy by now. Sending out another UOA tomorrow so we will see if anything changes. Oil used is Pennzoil Platinum HM 10w30.