The diesel filter element filters the fine impurities in the diesel oil, and the fuel water separator filters the water in the diesel oil. The two functions are completely different. The fuel water separator can only filter water and cannot filter impurities, so both are very important for diesel vehicles.
The diesel filter element needs to be replaced regularly, otherwise it is easy to cause the blockage of the oil circuit. Generally speaking, the diesel filter element should be checked every 10000 kilometers. If the driving conditions are bad, it is also necessary to consider replacing it in advance.

Diesel filter precautions
The diesel filter can provide targeted protection for the engine. The main components include high-pressure oil pump, fuel injector, etc. The working principle is to protect the high-pressure oil pump, fuel injector and other components by separating and precipitating the water in the fuel and filtering the impurities in the fuel. It can reduce the early wear of the engine and extend the service life of the engine.
The selection of high-quality diesel filter can maximize the protection of the engine, extend the service life of the engine, ensure the normal operation of the vehicle, reduce the probability of vehicle failure, and reduce the maintenance cost, which is very helpful to reduce their own economic losses.
The structure and function of the two are different. The fuel water separator can only separate water and cannot filter impurities. It has a drain plug under it, which can drain water regularly without replacement. The diesel filter can filter impurities and should be replaced regularly, but some diesel filters also have water separation function, and there is also a drain plug under them.
Supplement: Take a look at the lower part of the diesel filter housing. If it is equipped with a drain plug, it has the function of water separation. When using it, it is necessary to drain water frequently. If not, it is definitely not