How often does the automobile gasoline filter change?

The replacement cycle is generally 10000 km. If there are few impurities in gasoline, it is not a big problem to replace 15000-20000 km. If the steam filter has not been replaced for more than 30,000 kilometers, it is likely that the steam filter is blocked, but it depends on the cleanliness of the added fuel. We'd better not wait until the gasoline filter is blocked before replacing it. Preventive replacement shall be carried out once every 20,000 kilometers at most.