I just did this same job (filter & oil) yesterday. The oil was 15 months old, but only had 791 mi. on it. It looked new coming out. What a waste. I just change it once a year and it's always way below on miles to be done. I have the magnetic plug from pelican also. It had a fine small amount of metallic sludge on the end. I cut my filter ends off and unrolled it. I didn't have the metal bits like the op. It did however, have little amber/brownish bits here and there. Maybe 1/2 dozen a the most. I've read somewhere on this forum what they might be, but can't remember????
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