What should be noted when using a tractor in winter?

In winter, when temperatures are low, before starting, slowly add hot water at about 80°C to preheat the engine, which helps the tractor start smoothly. Diesel fuel should be selected according to the temperature: in winter, the pour point of the diesel chosen should generally be 5–10°C lower than the local minimum temperature to ensure the tractor operates normally. At the same time, fill the lubricating oil to full and keep the travel speed slow.