About oil leakage after changing the oil filter:
1. For the rotary oil filter, the correct installation is to install with 2 kg of rotary force, avoid installing with a wrench. The rotating force is too large, easy to cause the filter seal ring deformation, high pressure air impact, filter notch resulting in leakage.
2. The pollutants in contact with the old oil filter are not treated clean.
3. When removing the old oil filter, due to the previous rotation force is too large, the old sealing ring is stuck on the filter seat, and the new oil filter leaks oil after installation.
4. The lubrication system is seriously polluted, and the oil dirt blocks the main oil passage, causing internal pressure and impacting the filter seal ring leading to oil leakage.
5. For the Eco-Friendly Element filter, most of the sealing rings in the guide rod are not removed, and a new filter sealing ring is installed.
6. When the Eco-Friendly Element filter is replaced, the sealing ring in the new filter is not replaced.
7. Eco-Friendly Element filter, the rotary force of the outer seal ring of the filter is still too large, resulting in serious deformation or hidden injury of the filter, and oil leakage under pressure.