Any guesses

No I don’t work in the woods personally but cut wood for the house and shack during the winter. Have friend at work that logs on side and half my older relatives were loggers since probably the early 1900’s. Gets pretty cold up here not far from Ely or embarrass mn that has hit close to -60 air temps and competing for coldest temps in lower 48. That and lots of milling with a saw winter time and in my experience winter weight bar oil works fine.