As of August 2021, the price will be around 300-1,000 yuan.

Generally speaking, the frequency of car oil line cleaning is every 30,000 to 40,000 kilometers. Car owners can decide according to the driving environment, driving road conditions, driving frequency and local oil products. If carbon deposits are easy to form, It needs to be increased or decreased appropriately.

Some parts use a no-disassembly and cleaning machine for cleaning. This method is to use a special no-disassembly and cleaning machine to connect the engine oil inlet pipe and oil return pipe to the oil inlet and return pipes of the no-disassembly and cleaning machine, and use A special interface connects the oil inlet pipe and the oil return pipe to form a circuit. This method is cheaper than "hanging bottles", and the price is about 400-500 yuan.

Precautions for cleaning oil lines in cars

After the fuel system has been working for a period of time, the carbon deposits and colloid formed by combustion will adhere to the fuel injector, causing the fuel injector to appear. Adhesion or even blockage. Impurities and dust in the air and gasoline can also cause blockage or blockage in the oil circuit, eventually forming carbon deposits and deposits on the fuel injection nozzle (carbon deposits can also form on the valve, combustion chamber, and intake pipe, but this article mentions (only for carbon deposits on the fuel injector).

If the oil circuit is not cleaned for a long time, carbon deposits and sediments will clog the injector needle valve and valve hole, affecting the performance of precision components of the injection system, resulting in poor fuel injection and poor atomization. Not even fuel injection. This results in unstable idle speed of the car, increased fuel consumption, weak acceleration, and difficulty in starting.