unit40
Silver Member
Hey guys, I have the 3TNV76 Yanmar diesel in my Deere tractor. After the first 50 hours, I replaced the oil with Deere Plus-50 15W-40 oil, which I ran all summer until now. My concern was whether this oil is OK for the winter or if I would be better putting in a lighter 5W-30 oil for the winter, because it can get pretty cold up here in the northeast. Does anyone have any comments about the Deere Plus-50 0W-40 oil for winter or even year round use?