How Many Kilometers to Clean the Engine?
2 Answers
The engine should be cleaned every 20,000 to 40,000 kilometers, and the cleaning interval should be adjusted according to actual conditions. Below is some information about engine cleaning: 1. Reasons for Cleaning: During engine operation, the high-temperature working environment, various relative movements, friction between surfaces, and combustible gas entering the crankcase from the cylinders can all affect the performance and quality of the engine oil. When the performance and quality of the oil decline, its ability to clean the engine's oil passages also decreases, eventually leading to sludge buildup in the engine's lubrication system, and in severe cases, even clogging the oil passages. 2. Recommendations: There is no need to be overly concerned about sludge inside the engine. New cars or cars with low mileage do not require cleaning, but it should not be neglected either. For cars that are 3-5 years old or have a mileage of 50,000 kilometers, engine cleaning is still necessary.
I recommend paying attention to the frequency of engine cleaning, but there's no fixed standard for the specific mileage as it depends on vehicle usage. Generally, considering a cleaning every 20,000 to 50,000 kilometers is reasonable to prevent carbon buildup and maintain fuel efficiency. I've noticed during maintenance that if your car frequently drives in urban traffic jams or dusty areas, it's better to clean it around 20,000 kilometers to avoid performance degradation caused by clogged impurities. Cleaning not only extends engine life but also makes acceleration smoother—I feel like it saves fuel costs. The key is to check the vehicle manual or consult a mechanic's advice, rather than waiting until engine noise increases, which would raise repair costs. Regularly inspecting signs of carbon buildup, such as increased fuel consumption or difficulty starting, can help determine the right cleaning timing.
