Tractors, large cars, diesel locomotives, civil works, excavators, loaders, etc. are all diesel -fueled vehicles. Diesel-engine vehicles are fueled by diesel, a light petroleum product with high energy density, low fuel consumption, and low pollution.
Like gasoline in cars , diesel comes in different grades. Diesel is classified according to freezing point. There are six brands of light diesel: 5, 0, -10, -20, -35, and -50, and three brands of heavy diesel: 10, 20, and 30.
Diesel fuel is selected according to the temperature at which it is used. Diesel vehicles mainly use the last 5 grades of diesel, and 0# diesel when the temperature is above 4℃; -10# diesel when the temperature is 4℃—–5℃; -5℃—–14 When the temperature is at -20°C, choose -20# diesel oil; when the temperature is at -14°C—–29°C, choose -35# diesel oil.
If the diesel grade is higher than the above temperature, the fuel system in the engine may be waxed, blocking the oil circuit and affecting the normal operation of the engine.