What is the best way to clean up the engine carbon deposit?

The best way to clean up the carbon deposit in automobile engine: 1. The most common method 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 20,000 kilometers. Of course, different models will have different cleaning cycles. We can do it according to the maintenance manual; We can remove the carbon deposit inside the engine before replacing the new oil. Open the oil cover, add cleaning agent to mix with the old oil, and run at idle speed for about 10 minutes. Everyone can buy their own detergent. The operation is simple, just do it yourself. 3. Air intake system cleaning Buy a bottle of air intake system cleaning agent, 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.