How often does the diesel fine filter change? Different vehicles and different operating environments may have slightly different replacement cycles.

1. Diesel fine filter is a diesel fine filter designed for the current two-stage filtration commonly used in diesel engines. It forms a two-stage filter together with the diesel oil-water separator. The oil-water separator is used to filter the water in the diesel, and the diesel fine filter is the fine particles in the diesel.
2. As the main filter in the two-stage filter, the diesel fine filter is also the last line of defense against impurities. It has high requirements for filtration efficiency and service life. At present, for diesel heavy trucks of the National Three Standards, the filtration efficiency of 35 micron particles is required to be as high as 98.6%, the filtration efficiency of particles above 510 microns is 99.8%, and the filtration efficiency of particles above 10 microns is required to be 99.9%. While ensuring high filtration efficiency, it must also meet the small flow resistance to ensure the reliable operation of the engine and sufficient power;
3. In order to allow the engine to drink clean and good diesel and avoid the abnormal wear of common rail components used in the engine, only fine filtering of the diesel can effectively protect the high-pressure pump, electronically controlled injectors and common rail nozzles be effectively protected, and unnecessary high maintenance costs can be reduced.