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The Working Principle and Replacement Cycle of Automobile Oil Filter

As we know, the oil may be used and exposed to more by the driver. However, in some parts of oil maintenance, you may be less familiar with other parts. Today, let's see the car oil filter.


1. The working principle of the auto oil filter


During the working process of the engine, metal wear debris, dust, carbon deposits and colloidal deposits oxidized at high temperature, water, etc. are constantly mixed into the lubricating oil. The function of the auto oil filter is to filter out these mechanical impurities and gums, to keep the lubricating oil clean, and to extend its service life. The oil filter should have strong filtering capacity, low flow resistance, and long service life. Generally, several kinds of filters with different filtering capacity are installed in the lubrication system-filter collector, coarse filter and fine filter, which are respectively connected in parallel or in series in the main oil passage. The coarse filter is generally connected in series in the main oil passage, which is a full flow type; the fine filter is connected in parallel in the main oil passage, which is a split flow type. Modern car engines generally only have a 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.


2. The replacement cycle of the auto oil filter


The correct installation of the auto oil filter can prevent impurities from mixing into the oil during the use of the internal combustion engine, and prevent the wear of moving parts and blockage of the oil circuit.  Boma reminds you: The oil filter must be replaced when changing the lubricating oil, otherwise the quality of the lubricating oil will be affected. The oil and oil filter replacement cycle is generally 5000 kilometers. As the power source of a car, oil is irreplaceable. In such a situation, naturally there will be some other accessories to ensure that the oil can play a better role in the car.


Auto oil filter can filter dust, sludge, metal particles and other impurities in the oil. This is to keep the oil as clean and pure as possible, which enables it to best lubricate the internal parts of the engine. Without a good filter, this sticky thing will damage the internal parts of the engine, increase the friction to increase the operating temperature of the engine, and shorten the life of the engine.

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