How many kilometers should a car drive before cleaning carbon deposits?

[DiGavin]

It is recommended to clean carbon deposits every 10,000 kilometers for a car. Car owners can also decide based on their driving conditions. If driving on highways for long periods, the interval can be extended to 30,000 to 40,000 kilometers. For city driving, it is suggested to clean every 20,000 to 30,000 kilometers. Carbon deposits refer to a mixture accumulated on the engine's valves, combustion chamber, and intake pipes. Carbon deposits can be categorized into valve deposits, combustion chamber deposits, and intake pipe deposits. The hazards of carbon deposits include: 1. Damage to engine components; 2. Decreased engine performance; 3. Insufficient engine power; 4. Increased fuel consumption; 5. Increased emissions of tailpipe pollutants; 6. Difficulty in cold starts and abnormal noises during acceleration.