What are the consequences of adding the wrong oil?

If the wrong low-viscosity engine oil is added at the right time, although it will feel brisk when driving, it will increase engine wear and cause physical damage to the engine. If the wrong high-viscosity oil is added, the rectangular resistance of the engine will increase, fuel consumption will increase, and the dynamic response will decrease.

　　

When the car engine is produced, the oil index will be tested. After the test, it will be marked in the description of the car. For example, the oil viscosity required by most Japanese cars is 20, while the oil viscosity required by domestic cars is 30. . The W on the engine oil represents winter, and the value before the W indicates the temperature that the oil can adapt to. The smaller the value, the lower the temperature it can adapt to. The number after W corresponds to the viscosity of the oil, the higher the number, the higher the viscosity. Automobile engine oil is called the blood of the engine. It mainly plays the role of lubricating and cooling, reducing wear and preventing moth. There are many parts inside the engine, and the engine oil mainly forms an oil film on the parts, so that they will not be subjected to severe wear during work, thereby shortening the service life.