I still battle the chute rotation chain ice up, a bit less than before. Best seems to be to grease the chain and chute surface where the chain contacts the chute, lasts about two days. 2nd best is to use chainsaw bar oil on the chain and chute surface, lasts about one day. Last place is the spray on chain lube, lasts about four hours, also the easiest to apply. I always clean and remove any ice buildup before parking the machine.