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We usually choose high-quality oil filters when purchasing. I believe that no one will choose inferior filters. Then, when we choose filters, we need to understand the characteristics and advantages of high-quality oil filters from professional engine oil filter manufacturers.
1. Filter paper
Oil filters have higher requirements for filter paper than air filters, mainly because the temperature of the oil varies from 0 to 300°C. The filter paper of a high-quality oil filter should be able to filter impurities under severe temperature changes while ensuring sufficient flow.
Cheap filter paper is mostly made of cotton pulp paper, which has poor filtering effect. The filter paper of inferior car oil filter is easy to decompose and dissolve into the engine oil, blocking the oil passage, accelerating the deterioration of the engine oil, and causing engine damage.
2. Rubber sealing ring
The high-quality oil filter sealing ring is made of special rubber to ensure 100% no oil leakage.
3. Check valve
Only suitable for high quality oil filters. When the engine is turned off, it can prevent the car oil filter from drying out; when the engine is restarted, it will immediately generate pressure and supply oil to lubricate the engine. Cheap oil filters don't have check valves, which accelerates wear when the engine starts.
4. Bypass valve
Only found in premium oil filters. When the external temperature drops to a certain value or the oil filter of the car exceeds the normal service life, the overflow valve will be opened under special pressure, allowing the unfiltered oil to flow directly into the engine to lubricate the friction parts - the unfiltered impurities in the engine will increase wear and tear. Therefore, the safety valve is the key to protect the engine in an emergency. (also known as bypass valve)
Regularly replace the car oil filter to prevent engine wear. Cheap oil filters don't have a bypass valve, and in particular, there is no lube oil supply, rendering the engine useless.
1. For the spin-on oil filter, the correct installation is to install it with a 2 kg thick screw, and do not use a wrench to install it. If the rotation force is too large, the sealing ring of the filter will be easily deformed, and under the impact of high-pressure air flow, the filter will notch and cause leakage.
2. The pollutants in contact with the old fully synthetic oil filter have not been cleaned.
3. When dismantling the old oil filter, because the previous rotation force was too large, the old sealing ring stuck to the filter seat, and the new oil filter leaked oil after it was installed.
4. The lubrication system is seriously polluted, and the oil dirt blocks the main oil passage, causing internal pressure, impacting the filter sealing ring and causing oil leakage.
5. Regarding the environmental protection filter element (paper filter element), most of the guide rod inner sealing rings are not removed, and a new filter sealing ring is installed.
6. When the environmental protection filter element (paper filter element) is replaced, the inner sealing ring of the fully synthetic oil filter is not replaced.
7. For the environmental protection filter element (paper filter element), the rotation force against the outer sealing ring of the filter is still too large, causing serious deformation or hidden damage of the filter, and oil leakage due to impact under pressure.
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