What kind of oil does a turbodiesel engine use

When choosing an oil for a turbocharged diesel engine, the following factors need to be taken into consideration:

1. Oil grade: The oil grade that matches the diesel engine should be selected, such as CD, CF, CF-4, etc. For turbocharged engines, it is recommended to use CF-4 or higher grade oil.

2. Viscosity consideration: In the warm season, 20W-50 oil is usually recommended. However, some well-known brands offer oil in the 15W-40 viscosity grade that performs better in terms of fuel economy. Note, however, that for vehicles in poor condition, it may be safer to avoid oil with a viscosity below 50.

3. Performance requirements: In view of the high speed and high operating temperature of turbocharged engines, the oil needs to have excellent wear resistance, high temperature stability, oil film retention ability and shear resistance. Fully synthetic or semi-synthetic oils often meet these demanding performance requirements.

4. ACEA standard: For direct injection turbocharged engines, the use of ACEA C3 grade oil is preferable due to its lower ash content, which helps to extend the service life of the engine.

5. Brand preference: Owners can choose from well-known brands such as Mobil, Ashshell, Castrol or Great Wall according to their personal preferences and budget. These brands of oils offer a variety of features such as cleaning effects, cold start protection and more.

6. Replacement cycle: In view of the high requirements of turbocharged engines on oil, it is important to regularly change the oil and oil filter to ensure the cleanliness and adequacy of the oil and prevent the occurrence of oil deterioration or oil shortage.

7. Viscosity selection: Although both 5W30 and 5W40 oils can be used in turbocharged engines, 5W40 oil is more recommended for high-performance turbocharged engines. Of course, the specific choice needs to be determined according to the old and new degree of the vehicle.

In summary, when choosing an oil for a turbocharged diesel engine, priority should be given to a fully synthetic or semi-synthetic oil, and the appropriate viscosity grade should be determined according to the recommendations of the vehicle manufacturer and the use environment. At the same time, the oil replacement cycle and brand choice should not be ignored.