What needs to be cleaned for oil change?

The engine is clean. The engine should be cleaned when the mileage of Laike 05 exceeds 65,438+05,000 kilometers. In fact, our oil itself has a certain cleaning function. Every oil change can actually be regarded as a cleaning inside the engine, but the oil will form carbon deposits inside the engine, and the oil change machine is not easy to use every time. Therefore, in addition to the conventional oil change, a carbonaceous cleaning agent should be added to clean the carbon deposit, so it is necessary to clean the engine to change the oil quantity of LEICK 05.