How to choose diesel engine filters ?

How to choose diesel  engine filters ?

According to different filtering functions, they are divided into: oil filter, fuel filter (gasoline filter, diesel filter, oil-water separator, hydraulic filter), air filter, air conditioning filter, etc. The engine has three types of filters: air, oil and fuel, which are generally called "three filters". Together with the cabin filter, it is commonly known as four filters. Responsible for the filtration of the lubrication system, the medium in the combustion system, the engine air intake system, and the cabin air circulation system respectively.