Of course, the fuel filter cannot be replaced, for the following reasons:
1. Over time, the filtering ability of the filter element will deteriorate. On the one hand, the gasoline filter element is blocked, which will affect the fuel pressure and cannot supply oil. On the other hand, some impurities in the oil will enter the fuel injector, valve valve, and the cylinder will affect the normal operation of the engine;
2. If the gasoline oil used is of good quality, the service life of the gasoline filter element will be longer;
3. Always check to see if the filter element is dirty. If it is dirty, it needs to be replaced. If the gasoline filter element is dirty and not replaced, it will affect the normal fuel supply of gasoline, thereby affecting the normal performance of the car's power;
4. It should be reminded that the water or impurities in the gasoline filter cup should be placed frequently, so as not to affect the oil quality entering the cylinder and the filter element to become dirty prematurely.

Automobile fuel filters are generally replaced once every 60,000 kilometers:
1. There are three types of fuel filters: diesel filters, gasoline filters and natural gas filters. The function of the fuel filter is to prevent particulate matter, water and impurities in the fuel, and to ensure that the precise components of the fuel system are protected from wear and other damage;
2. The fuel filter is connected in series on the pipeline between the fuel pump and the fuel inlet of the throttle body. The function of the fuel filter is to remove the iron oxide, dust and other solid impurities contained in the fuel, prevent the fuel system from clogging, especially the fuel injection nozzle, reduce mechanical wear, ensure the stable operation of the engine, and improve reliability;
3. The EFI filter cannot be used in common with the carburetor filter. Since the EFI filter often bears the fuel pressure of 200-300KPA, the compressive strength of the filter is generally required to reach more than 500KPA, while the carburetor filter does not need to reach such a high pressure.