I purchased a new one, 34 hours this week. I like the machine. 5K to 3 acre properties are great. I changed oil the other day, the dip stick always read full. The manual states you need 22 oz of oil. I drop the oil, get about 16 oz. I am wondering now. I fill the tank (which is a pain in the *&%) and I put in roughly 16 oz. R guys in the same boat? Also what problems have you guys ran into with these machines as you get more hours on them? I don't carry any spare parts with me. As I am spreading dry - after a while I get build up in the bottom of the hopper. I usually take a 50pd bag at a time and then clean it out, spray penetrating oil in there and it works great for another 40 pds worth. Then it gets tough to spread and empty the remaining fert. out. Any suggestions on not gumming up?