How often to clean the carbon deposit

The operation of the engine will inevitably produce carbon deposits, which need to be cleaned regularly, and can be cleaned according to the road conditions and mileage of the vehicle. If the vehicle is driving in the urban area for a long time, it is recommended to clean the throttle body at intervals of 15,000 kilometers and the intake port and fuel injectors at intervals of one year or 30,000 kilometers. It is recommended that the air intake system be cleaned without disassembly every 20,000 to 40,000 kilometers when the routine maintenance is satisfied: 1. That is, on the premise of not disintegrating, use special equipment and special methods to remove vehicle inlets, valves, oil passages and other parts that are prone to form carbon deposits to carry out carbon deposit operations; 2. Carbon deposits include two concepts: One concept is the carbon deposits of the engine: a scorched substance produced by the unsaturated olefins and gums in the fuel at high temperatures during the engine's operation; 3. The second concept is carbon deposition in electrical discharge machining. Carbon deposition should be avoided in electrical discharge machining as much as possible, especially in precision mold processing.