Has anyone had this happen? I got our 1650 warmed up after the water in the transmission froze, and drained it. I let it drain for over 2 hours to get all I could. Pulled the pick up screen and drained it also. Replaced the filter with a new filter left over from the Oliver dealer we still had. I put in 6 gallon (it calls for 8) of good 80/90 oil and ran it around for about another hour clearing the drive more and everything worked fine. I went out yesterday at about 30 degrees and started right up. When I got off, I looked down and the filter was pouring oil on the floor. It was a little milky looking but not bad, like ice in it. Now, it is off to town to buy one of the newer, improved, Chinese version filters. I only put in 6 gallon because I planned on using it when I need to move some snow, and in the spring, drain and flush when it is warmer and add the 8 gallon it calls for.