I'm positive it's motor oil. To thick to be atf. And smells different. I didn't have time today to pull out the valve body. But in the morning I plan to take it out and hose the inside down with brake cleaner. If it's burnt atf I should see some nice pretty blue metal in there.
I was thinking when I seen that that it might have been done to solve a problem. Like how they used to add sawdust to the atf.