I'm not a chemist, and so the only thing that would mean anything to me, would be to see the clean oil analysis in comparison. These numbers appear to be parts per million or some such thing, and knowing that most refiners have all kinds of cats and dogs in their oil makes me leary of taking this information and acting on it. The key to any chemical analysis is understanding the baseline or standard. Sounds like Peter has some experience with oil analysis.

Incidently, how much does this service cost and who does it?

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1976 240D
1987 560SL
2007 E320 Bluetec
1998 C280 (now son’s car)
1982 240D Manual - Sold