Post: Oil filter performance?

Oil filter, also known as oil filter. It is used to remove impurities such as dust, metal particles, carbon sediments and soot particles in the oil to protect the engine.
Oil filters are divided into full-flow and split-flow types. The full-flow filter is connected in series between the oil pump and the main oil channel, so it can filter all the lubricating oil entering the main oil channel. The split-flow filter is connected in parallel with the main oil channel and only filters part of the lubricating oil sent by the oil pump.
Technical features:
● Filter paper: The oil filter has higher requirements for filter paper than the air filter, mainly because the temperature of the oil varies from 0 to 300 degrees. Under drastic temperature changes, the concentration of the oil also changes accordingly, which will affect the filtration flow of the oil. The filter paper of a high-quality oil filter should be able to filter impurities under drastic temperature changes while ensuring sufficient flow.
● Rubber seal: The filter seal of high-quality oil is synthesized with special rubber to ensure 100% oil leakage.
●Backflow suppression valve: only available in high-quality oil filters. When the engine is turned off, it prevents the oil filter from drying out; when the engine is re-ignited, it immediately generates pressure to supply oil to lubricate the engine. (Also called a check valve)
●Overflow valve: only available in high-quality oil filters. When the external temperature drops to a certain value or when the oil filter exceeds the normal service life, the overflow valve will open under special pressure to allow unfiltered oil to flow directly into the engine. Even so, impurities in the oil will enter the engine together, but the damage is much smaller than the damage caused by no oil in the engine. Therefore, the overflow valve is the key to protecting the engine in an emergency. (Also called a bypass valve)