My understanding of the Blackstone analysis is that the insolubles represent the soot level among other contaminants and as long as they are below the threshold shown you are OK. The entire analysis really doesn't look bad to me at all, especially with an engine that has 165K miles on it already.

Did you inform them that this was a first use of synthetic oil before they analyzed it? You might expect numbers to be slightly higher in the first use of synthetic oils so I would not get too excited at this point. How about you drive another 5K miles and draw a sample for analysis to compare? That way you would know if your results are an anomoly or not.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz