When replacing the gasoline filter, there are several issues that need attention: 

1. It is generally recommended to replace the fuel filter every 15,000 kilometers;
2. After replacing and installing the gasoline grid and the engine oil grid, pay attention to the seal of the interface and be alert for oil leakage;
3. When replacing the gasoline filter or maintaining the gasoline system, smoking and the use of open flames are prohibited;
4. If lighting is required during maintenance operations, it is important to ensure that the lighting used meets occupational safety standards;
5. When replacing the gasoline filter, it must be carried out in the engine cooling state, because the high-temperature exhaust gas discharged from the exhaust pipe during the engine warm-up period can ignite the fuel;
6. The filter has arrow marks on the inlet and outlet ports, do not install it backwards when replacing it;
7. Before replacing the gasoline filter, release the pressure in the fuel system according to the operating procedures specified by the car manufacturer.