How often do direct injection engines clean up carbon deposits?

1 The most common way is to remove the throttle, clean the throttle with carburetor before and after, and dry it with cotton cloth. It is generally recommended to clean the throttle once a year or 20 thousand kilometers. Of course, different models will have different cleaning cycles, and we can follow the maintenance manual.

Clean up the carbon deposit inside the engine, which we can do before replacing the new oil. Open the oil cover, add the cleaning agent, mix it with the old oil, and run at idle speed for about 10 minutes. The cleaning agent can be bought by yourself, and the operation is very simple. Just do it yourself.

Cleaning of air intake system: buy a bottle of cleaning agent for air intake system, pour it into the liquid storage tank of special cleaning equipment, connect the air intake system, and suck the cleaning agent into the air intake by vacuum to achieve the purpose of cleaning. Cleaning the carbon deposit in the intake system mainly refers to cleaning the carbon deposit in the intake and intake manifold. Its purpose is to remove carbon deposits in the intake system, increase intake flow and speed, and reduce engine jitter and idle instability.