I'd prefer to see none, and it's a bit of a first for me.
Photos are not coming out yet, will try different lighting. Thought I'd do a cut and post, after changing oil in the 2003 CRV, which has 180k on the clock. While trying to separate the pleats I started seeing silvery things in the light... I grabbed a strong magnet and could watch them "fly" at the magnet, so definitely ferrous. Cylinder walls getting scraped from cold starts? I would have though non-ferrous bearing material first to show up as wear material. Valvetrain? not sure if it's had clearances checked in a while.
Magnet is about 6mm in diam, so these flakes are "itty bitty". This is after waving over like a half of the filter--it's by no means loaded up (actually not a lot of carbon in there, but 5k OCI's).
Photos are not coming out yet, will try different lighting. Thought I'd do a cut and post, after changing oil in the 2003 CRV, which has 180k on the clock. While trying to separate the pleats I started seeing silvery things in the light... I grabbed a strong magnet and could watch them "fly" at the magnet, so definitely ferrous. Cylinder walls getting scraped from cold starts? I would have though non-ferrous bearing material first to show up as wear material. Valvetrain? not sure if it's had clearances checked in a while.
Magnet is about 6mm in diam, so these flakes are "itty bitty". This is after waving over like a half of the filter--it's by no means loaded up (actually not a lot of carbon in there, but 5k OCI's).