Can I Change My Car's Engine Oil Myself?

[StPaisley]

If the car owner masters the method of changing the engine oil, they can perform the replacement themselves. Engine oil consists of two parts: base oil and additives. The base oil is the main component of lubricating oil, determining its fundamental properties, while additives are an important part of the lubricating oil. The primary functions of engine oil are lubrication, cleaning, heat dissipation, ensuring the normal operation of the engine, and extending its lifespan. Therefore, engine oil plays a crucial role in the proper functioning and longevity of the engine. The SAE viscosity classification for winter oils includes grades such as 0W, 5W, 10W, 15W, etc. The symbol 'W' stands for winter, and the smaller the number before 'W', the lower the low-temperature viscosity and the lower the applicable minimum temperature. The SAE viscosity classification for summer oils includes grades such as 20, 30, 40, 50, where a larger number indicates higher viscosity and a higher applicable maximum temperature.