How Often Should the Engine Be Cleaned?

[StAiden]

Engine cleaning is recommended every 20,000 to 40,000 kilometers. The lubrication system cleaning service at 4S shops typically involves adding a cleaning agent through the engine oil filler port before an oil change, keeping the engine running for 5 to 10 minutes, and then draining it along with the old oil. More details about engine maintenance are as follows: 1. During engine operation, the high-temperature environment and the wear from relative movements and friction between surfaces can affect the performance and quality of the engine oil. 2. When the performance and quality of the engine oil degrade, its ability to clean the oil passages decreases, leading to sludge buildup in the engine lubrication system. In severe cases, this can even block the oil passages, which is why the engine lubrication system requires regular cleaning.