The oil filter is generally one or two, the oil filter, also known as the oil grid. It is used to remove impurities such as dust, metal particles, carbon deposits and soot particles in the engine oil to protect the engine. The oil filter has a full-flow type and a split-flow type. The full-flow filter is connected in series between the oil pump and the main oil passage, so it can filter all the lubricating oil that enters the main oil passage. The split-flow cleaner is connected in parallel with the main oil passage to filter only part of the lubricating oil sent by the oil pump.

Relevant information of the oil filter:
1. Under normal circumstances, the various parts in the engine are lubricated by the oil to achieve normal operation, but the metal chips, dust, carbon deposits oxidized at high temperature and part of the water vapor generated during the operation of the parts will continue to be mixed into the oil. Over time, the service life of the oil will be reduced, and it may affect the normal operation of the engine in severe cases;
2. Therefore, the role of the oil filter is reflected at this time. Simply put, the main function of the oil filter is to filter most of the impurities in the oil, keep the standby oil clean, and prolong its normal service life;
3. In addition, the oil filter should also have strong filtering capacity, low flow resistance, and long service life.