What are the causes of excessive oil consumption?

[DiOwen]

The causes of excessive oil consumption include: 1. Wear or damage to piston rings, misalignment or incorrect installation of piston rings; 2. Excessive clearance between pistons and cylinder walls; 3. Excessive wear of the intake valve guide; 4. Oil leakage in the oil circuit; 5. Excessive engine speed. The functions of engine oil are: lubrication, auxiliary cooling, cleaning, sealing and leak prevention, rust and corrosion prevention, shock absorption, and anti-wear. The method for adding engine oil is: 1. Lift the car, remove the undercover, and place a container of about 10 liters under the oil drain plug; 2. Unscrew the oil drain plug, use an air gun to blow into the oil filler port for two minutes, tighten the oil drain plug after draining, and wipe with a paper towel to check for leaks; 3. Reinstall the undercover and lower the car, then use a funnel to add oil through the filler port.