Commercial vehicle oil filter is a key part of the engine lubrication system, its role is to filter impurities in the oil, to ensure the cleanliness of the oil, so as to protect the engine. However, the filter will gradually clog during use and lose its filtering effect, so regular maintenance and replacement of the oil filter is essential.

Oil filter maintenance
Regular inspection: Regularly check the outside of the oil filter to see if there is damage, leakage or deformation. At the same time, check the color and viscosity of the oil to determine whether the oil is seriously polluted.
Clean the surrounding environment: Keep the oil filter clean around to avoid dust and impurities into the filter, affecting the filtration effect.
Pay attention to oil replacement: When replacing oil, ensure that the oil that meets the requirements of the engine is used, and avoid the use of inferior oil that leads to the blockage of the filter.

Oil filter replacement
Replacement cycle: According to the vehicle manual or manufacturer's recommendation, determine the oil filter replacement cycle. Usually, the replacement cycle of the oil filter for commercial vehicles is a certain number of kilometers per trip or after a certain time interval.
Preparation: Before replacing the oil filter, prepare the new filter, the appropriate tools (such as wrenches, filter wrenches, etc.) and the oil tray.
Oil discharge: Park the vehicle on a flat ground, start the engine to warm the car and turn it off. Use a wrench to open the oil drain bolt and drain the old oil into the oil tray.
Remove the old filter: Use the filter wrench to remove the old oil filter, pay attention to the filter may have residual old oil, be careful to handle.
Install the new filter: Apply a clean coat of oil to the seal of the new oil filter, then hand tighten the filter until the seal touches the base, and finally use the filter wrench to tighten according to the specified torque.
Fill the new oil: close the oil drain bolt, add the right amount of new oil through the oil filling port, be careful not to exceed the upper limit of the oil scale.
Check and start: check whether there is leakage at the oil filter and oil drain bolt, and start the engine after confirming that the oil pressure is normal.

Matters needing attention
Choose the right filter: When replacing, make sure to select the oil filter that matches the engine model.
Correct installation: When installing the new filter, ensure that the sealing ring is correctly installed to avoid oil leakage.
Disposal of used oil: The old oil and filter should be properly disposed of to avoid pollution to the environment.
Record replacement time: Record the time or mileage of each oil filter change so that the next change can be made on time.

The maintenance and replacement of commercial vehicle oil filter is an important link to ensure the normal operation of the engine. By regularly checking, cleaning and replacing the filter, you can ensure the quality of the oil, extend the service life of the engine, and improve the performance and reliability of the vehicle. Therefore, the owner and maintenance personnel should attach great importance to the maintenance and replacement of the oil filter.