How are diesel models classified?
1 Answers
Diesel grades are classified based on the freezing point and temperature. The most important use of diesel is for diesel engines in vehicles and ships. Compared to gasoline, diesel has a higher energy density and lower fuel consumption. Freezing Point: The classification of diesel grades is based on the freezing point of the diesel. The numerical value of the diesel grade represents the freezing point temperature of the diesel rather than the octane number. Currently, light diesel used domestically is divided into six grades based on the freezing point: No. 5 diesel, No. 0 diesel, No. -10 diesel, No. -20 diesel, No. -35 diesel, and No. -50 diesel. Temperature: The selection of different diesel grades is mainly determined by the temperature during use. Generally speaking, No. 5 diesel is suitable for use when the temperature is above 8 degrees Celsius; No. 0 diesel is suitable for use when the temperature is between 8 and 4 degrees Celsius; No. -10 diesel is suitable for use when the temperature is between 4 and -5 degrees Celsius; No. -20 diesel is suitable for use when the temperature is between -5 and -14 degrees Celsius; No. -35 diesel is suitable for use when the temperature is between -14 and -29 degrees Celsius. The lower the diesel grade, the stronger the anti-freeze capability, so the choice of diesel grade should be based on the actual temperature.
