Odd dirt in new oil

Hey all. So I was performing an oil change and noticed, after the fresh oil was in, what seemed to be a suspension of dirt in the oil. Maybe remnants of the old oil? Precious oil was ammsoil, 10-40 synthetic. New oil is Lucas 10-40 Dino oil.

The picture are in sequential order. The dirt seems to dissolve into the oil over the course of 10 minutes

Any thoughts ?

Pics should appear below.



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Old oil mixing with new oil.

Wierd the way it mixed. Thanks


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Run half a can of crankcase cleaner next oil change... the site glass will be spotless. No more than 10 mins, dump oil, run some cheap dyno oil through to clean remnants, then add your liquid gold.