Can the cleaning agent be used inside the engine? How often do you usually clean it?

The engine is generally cleaned once every 30,000-50,000 kilometers, and it does not need to be cleaned too frequently.

The reason is:

1. Now most automobile lubricating oils have their own cleaning function, which can ensure that the engine does not produce sludge or a small amount within a certain kilometer.

2. Corrosive cleaning agents will corrode non-metallic parts in the engine, leading to engine failure.

3. If the driving mileage is long, cleaning the engine will reduce the oil pressure and the cylinder gasket will leak, causing great losses.

Extended data:

Detection method of automobile engine overheating.

1, the fan motor does not move or the fan clutch fails, so the normal cooling cannot be achieved.

2. The three-way catalytic converter is blocked or the pipeline is broken, resulting in blocked exhaust and overheating of the engine.

3. The pipeline of the cooling system is broken, which leads to the loss of coolant and the heat dissipation can't work normally.

4. The water pump is highly worn in long-term use, and the parts are worn off.

5. If the cover pressure of the radiator is different, it will cause the spring to loosen and the cover will not close tightly.

6. The thermostat can't switch normally, which is generally caused by mechanical failure or incomplete filling of the cooling system. It may be that the updated thermostat is different from the original temperature coefficient.

Baidu encyclopedia-automobile engine