Spitting oil through tailpipes.

moper said
Looking at the pictures - that's nothing. Run a PCV, or monitor the oil level and wash the car. A lot of that is carbon, BTW.

moper said
The carbon is the soot. The oil is the slick and slimy. Your tailpipes are full of soot. So the condensate warming up, and oil vapor in the gasses pull it up and carry it out. The airflow around the rear of the car at speed sticks it all over the back end.

I think Moper nailed it.
At the threads start, it seemed funny. But the insistence it is only oil had me wondering.
My exhaust can produce the same pictures and I know there is no oil leak.