The oil filter is used to remove metal chips and various impurities in the oil to prevent it from entering the lubrication system and wearing parts. After the oil filter is used for a period of time, a lot of sludge and metal debris will accumulate on the filter element, which will block the filter and hinder the normal operation of the lubrication system. At this time, the filter element of the oil filter should be replaced.

The following are the steps to replace the oil and filter:
1. Preparation tools: special oil filter wrench head, oil filter removal tool, oil screw removal tool 13 pull wheel wrench, remove the oil screw, T30 outer hexagon head and 8 mm inner angle head to remove the engine under the protective cover, there are two kinds of screws, connect the straight handle, maintain the oil used for maintenance, and the oil filter element;
2. The oil can only be changed after the car has been running for a period of time. That is to say, if the car is to be heated, the oil cap should be opened to drain the oil, so that the oil can be drained relatively quickly under the action of atmospheric pressure;
3. Remove the upper and lower protective covers of the engine protective cover;
4. Put the oil screw;
5. Remove the oil filter element and use a basin to install the old oil. Install a new oil filter, smear it with new oil to help seal it, pour in about 4 liters of oil, and pay attention to the oil dipstick. After installation, start the car and step on the gas pedal twice. After a while, check the oil dipstick and you will be troubled.