In simple terms, the car maintenance oil grid is to check and maintain the car’s oil grid. If something goes wrong, it needs to be replaced. Because the oil grid is a filter that maintains the performance of the oil, it can only perform normal performance in the engine.

Oil grid function:
1. Normally, engine parts are lubricated by oil to achieve normal work, but when the parts are running, metal chips, incoming dust, high-temperature carbon oxide and some water vapor will continue to be mixed into the oil, and the service life of the oil will be reduced for a long time, which may affect the normal operation of the engine, and even the normal operation of the engine in severe cases;
2. Therefore, the role of the oil grid is brought out at this time, because the role of the oil grid is mainly to filter most of the impurities in the oil, to ensure the cleanliness of the standby oil, and to extend its normal service life;
3. In addition, the oil grid should also have the characteristics of strong filtering capacity, low circulation resistance, and long service life.

It is recommended to drain the oil when replacing the oil filter element. Pay attention to the following when changing the oil filter element:
1. Whether the oil of the original car is exhausted; whether the oil leaks after the oil filter and the oil drain bolt are installed;
2. Whether the oil volume is normal or not depends on this oil gauge. Whether the oil you added is the same as the oil you added before, and whether the oil is genuine;
3. It is used in the oil circuit of the hydraulic system to remove the worn-out metal powder and other mechanical impurities in the hydraulic system to keep the oil circuit clean, which can prolong the life of the hydraulic system;
4. The low pressure series filter element is also equipped with a bypass valve. When the filter element is not replaced in time, the bypass valve can automatically open to ensure the normal operation of the system.