Do you know about oil filters?

Oil filter, also known as oil grid. It is used to remove impurities such as dust, metal particles, carbon deposits and soot particles from oil to protect the engine.
Oil filters are divided into full flow and split flow. 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 entering the main oil passage. The diverter filter is connected in parallel with the main oil passage to filter only part of the lubricating oil sent by the oil pump.

During the working process of the engine, metal wear debris, dust, carbon deposits oxidized at high temperatures, colloidal sediments, and water are continuously mixed into the lubricating oil. The function of the oil filter is to filter out these mechanical impurities and gums, keep the lubricating oil clean and prolong its service life. The oil filter should have the characteristics of strong filtering ability, small flow resistance and long service life. In general, several filters with different filtration capacities are installed in the lubrication system—the collector, the coarse filter and the fine filter, which are respectively connected in parallel or in series in the main oil passage. (The one connected in series with the main oil passage is called a full-flow filter. When the engine is working, all the lubricating oil is filtered by the filter; the one connected in parallel with it is called a split-flow filter). Among them, the coarse filter is connected in series in the main oil passage, which is full flow; the fine filter is connected in parallel in the main oil passage, which is divided flow. Modern car engines generally only have a collector filter and a full-flow oil filter. The coarse filter filters out impurities with a particle size of 0.05mm or more in the oil, and the fine filter is used to filter out fine impurities with a particle size of 0.001mm or more.