
The effects of not changing the engine oil in time are: 1. It will cause the engine noise to increase; 2. It will lead to accelerated wear of internal components; 3. It will reduce the service life of the engine; 4. The sealing and cleaning effects will be diminished. The method for changing the engine oil is: 1. Lift the car, remove the protective plate, and place a container under the oil drain plug; 2. Unscrew the oil drain plug, use an air gun to blow for two minutes at the oil filler port, tighten the oil drain plug after draining, and wipe with a tissue to check for oil leaks; 3. Reinstall the protective plate, lower the car, and add new oil through the oil filler port. The functions of engine oil are: lubrication, auxiliary cooling, cleaning, sealing and leak prevention, rust and corrosion prevention, shock absorption, and anti-wear.


