I know guys that run atf, used oil and dont report any issues. One guy used to be in the logging industry as well.\
I use bar and chain oil, its red and has the tackifiers in it. I think I pay around 3$ a liter for it, tax in. For use in really the really cold winter (not often) I will add some fresh motor oil to the winter blend chain oil.
2006 Trailblazer LT. Castrol Edge with Fram Ultra.
2017 Ram 3500 SLT Megacab. Duron SHP 10w30 with LF16305.
1993 GMC 1500. It has oil and still runs