How Often Should Engine Oil Be Changed in a Sedan?

[VonJuliette]

Generally, the replacement cycle for engine oil in a sedan is between 5,000 to 10,000 kilometers or every six months to one year. Below is some information about engine oil: 1. Engine oil, also known as engine lubricant, serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine. 2. Changing the oil on time not only extends the engine's lifespan but also effectively reduces the vehicle's fuel consumption. Additional information: 1. The viscosity grade classification of four-stroke engine oil follows the classification by the Society of Automotive Engineers (SAE), known as the SAE classification. 2. The SAE viscosity grades for winter oils are: 0W, 5W, 10W, 15W, 20W, and 25W. The 'W' stands for winter, and the smaller the number before the W, the lower the oil's viscosity at low temperatures, the better its low-temperature fluidity, and the lower the minimum applicable temperature.