In order to ensure the effective protection of the gasoline filter element, usually the car needs to be replaced every 10,000-20,000 kilometers:

1. Of course, we still have to look at the actual situation to make a decision. When we find that the color of the filter element in the diesel filter has obviously turned black, it means that it is very important that the filter element is polluted by harmful substances, and it needs to be replaced in time;
2. If the gasoline filter element is dirty, there must be no way to ensure the cleanliness of the fuel when it enters the engine cylinder for combustion. After all, the gasoline added is not pure (contains impurities);
3. Not only will it cause a serious decline in the power of the car, but there is also a certain probability that it will affect the service life of some parts (high maintenance costs). It even directly blocks the fuel injector, resulting in increased fuel consumption and unstable idling;
4. Therefore, if the gasoline filter element is found to be dirty, it needs to be replaced even if it has not reached the specified replacement period.

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 parts 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.