Hey Don87, what kind of diesel fuel are you feeding your MF? During the winter, I use #1 winter blended off road diesel and also add power service from the white bottle, :thumbsup:. We have 2 fuel locations in my small town, and I always fill at the one that goes through the most fuel thinking I will get fresher fuel that does not sit in there tanks for along time, . Just a thought, put a small amount of fuel in a container and keep it with your tractor to look and see if the fuel has a gelling problem before you feed it to your MF? Good luck, KC