this is my first tractor and first diesel anything. I know that its starting to get cold and I need to get this tractor ready for winter, but I dont know what to do. I plan on keeping it in garage since it has a bad glow plug. Im hoping it will be warm enuff to make an easier start when I need to move snow. Should I treat the fuel with something?What is the most important things I should do? Thanks : DONOVAN.