Is Engine Carbon Deposit Cleaning Necessary?

[Clara]

Engine carbon deposit cleaning is necessary. Carbon deposits are a kind of coking substance produced by unsaturated olefins and colloids in fuel under high temperature during the engine's operation. Regular cleaning is required, with the main cleaning areas including: cleaning throttle carbon deposits, cleaning internal engine carbon deposits, cleaning fuel system carbon deposits, and cleaning intake system carbon deposits. Below are the detailed steps: 1. Cleaning throttle carbon deposits: Remove the engine cover, take off the throttle, and clean it with a cleaning agent. After drying with a cotton cloth, reinstall it. It is recommended to clean every 20,000 kilometers. 2. Cleaning internal engine carbon deposits: Open the oil cap, pour in the entire can of cleaner (mixed with old oil), then close the oil cap, start the engine and let it idle for 10 minutes before turning it off. Cleaning internal engine carbon deposits helps dissolve sludge, colloids, moisture, and metal debris inside the engine, reducing contamination of new oil and extending the engine's lifespan. It is recommended to clean every 40,000 kilometers. 3. Cleaning fuel system carbon deposits: This includes cleaning the fuel injectors, combustion chamber, spark plugs, and throttle valve. The purpose is to address issues such as insufficient horsepower, high fuel consumption, engine shaking, poor acceleration, or difficulty starting caused by carbon deposits, colloids, and dirt in the fuel system. No disassembly is needed for this cleaning; simply add a specialized fuel additive to the fuel tank regularly to achieve excellent cleaning results. It is recommended to add the additive every two fuel tank refills. 4. Cleaning intake system carbon deposits: This mainly involves cleaning the carbon deposits in the intake ducts and intake manifolds. The goal is to remove carbon deposits inside the intake system, increase airflow and speed, and reduce engine shaking and idle instability. Generally, 4S shops or repair shops use a hanging bottle method to inject intake cleaning fluid into the intake pipe. The cleaning agent participates in combustion cleaning, removing carbon deposits from the valves, combustion chamber, and piston heads. For naturally aspirated engines, it is recommended to clean every 40,000 kilometers, while turbocharged engines should be cleaned every 20,000 kilometers.