The first column is the current sample, oil not changed yet, but will be soon due to 1 year interval nearing. Second column (not counting average) is my sample from a year ago on "near virgin" oil. Third column is from a year ago, which was the then current second fill ever on the car. My Iron & Copper are coming down, so my break in must be nearing completion. I wonder why my insolubles were up to Trace from 0.2 last year though?