We have had it cold here all week in northern maine. Temps were down to -50 one morning, then -30 for a couple of days. My tractor sleeps in the garage. So after pluging in the block heater for 4 hours it fired right up. I let it run for about 20 minutes then thought I would go out and blow a little snow to warm up the hydraulic system. After about 10 minutes of blowing...my tractor started to spit and sputter, immediately I nursed it back into the garage (I was Lucky) I plugged in the salamander to heat up the garage and added 2 gallons of kerosene to the fuel tank. I also added some kerosene to my fuel barrel to help cut that down. Funny thing is that I had treated all my fuel with Howes Diesel treatment, much stronger than they recommended. But I still had problems. Hopefully this will fix my problems. I started up the tractor and let it idle for a while. Do you think I will be all right now....Good Luck