Japan and South Korea models should be cleared at about 30,000 KM, because most Japanese and Korean models are low-rotation high-torque engines, focusing on low-speed driving, and carbon deposition has a relatively small impact on engine power and fuel consumption. On the contrary, about 20,000 KM models in Europe and the United States should be cleared once, most models in Europe and the United States are medium and high-speed engines, reaching a certain speed into a real power output, most of the high-speed driving, but the high speed must first go through low speed, product The effect of carbon on the engine is more pronounced at low speeds. The impact of carbon deposition on the car: 1 , reduce engine power 2 , increase fuel consumption 3, cold start difficulties 4, the combustion chamber will be a serious carbon detonation! Acceleration noise at low speed, damage to piston and crankshaft 5, excessive emissions Solution: First: Fill high quality gasoline. Impurities such as waxes and gums in gasoline are the main components of carbon deposition, so the cleanliness of gasoline has a weak tendency to form carbon deposits. Unfortunately, the quality of gasoline in our country is still relatively low compared with developed countries. We should pay attention to the fact that high grades do not necessarily mean high quality, that is, the 97th oil is not necessarily less than the 93th. The label only represents the octane number of the oil and does not represent quality and cleanliness. Some car owners use gasoline cleaners in gasoline to ensure the cleanliness of gasoline. This can effectively prevent the formation of carbon deposits on the metal surface, and can gradually activate the original carbon particles to slowly remove, thus protecting the engine from harm. However, the addition of gasoline cleaner must be careful, if you add a counterfeit product will have the opposite effect. Second: Do not idle for a long time. If the idle time is long, the time for the engine to reach normal temperature will also be longer. After the gasoline is sprayed on the back of the valve, the evaporation speed will be slow, and carbon deposition will also occur. At the same time, often idling, the air flow into the engine is also small, so that the erosion of carbon deposition is also very weak, it will promote the deposition of carbon deposition. Third: Run more speeds, try to increase the shift speed of the car. The purpose of high-speed multi-run is to use the effect of airflow on the scouring of the intake port to prevent carbon deposition. In addition, increasing the speed of shifting is similar to that of multi-speed high speeds, converting the original shift to a 2500 shift at a speed of 2,000, which not only can effectively prevent carbon deposition, but also improve the dynamic performance of the car, and also avoids the need for change. Blocking vibration caused by too low speed protects the engine. Fourth: pay attention to the timing of car kill. For cars equipped with turbochargers, do not stop the car immediately after driving at a high speed or climbing a hill. After 10 minutes of idling, stop the car. The car with a turbocharger has a higher rate of carbon deposition than a car. Naturally aspirated cars are several times faster. Because of the influence of urban road conditions, people’s living rhythms, and the conditions of China’s fuel market, the above methods of avoiding carbon deposition may not be easy to achieve. Then it is recommended that the car owners in the routine maintenance Under the conditions that are met, the air intake system is free to be removed and cleaned every 20,000 to 40,000 kilometers. That is, it is easy to use the dedicated equipment-specific method for the intake, air, and oil passages of the vehicle without dismantling the engine. Carbon deposition is performed at the carbon deposition site. This can effectively reduce the impact of carbon deposition on the performance of the engine, keeping the heart of the car in the best condition.
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Do not stay idle for long periods of time
Carbon deposition is the deposition of incomplete combustion of helium gas mixture of fuel and lubricating oil. The formation of deposits (mainly composed of hydroxy acids, asphaltenes, tars, etc.) is directly related to the vehicle's fuel and lubricating oils: firstly because of the carbon particles contained in the helium of the lubricating oil, a greater amount of deposition occurs in incomplete combustion. The automobile itself contains gums, impurities, or dust and impurities brought in during storage and transportation. It accumulates sludge-like deposits in car fuel tanks, oil inlet pipes, etc. over time; secondly, it is caused by unstable components such as olefins in gasoline. Oxidation and polymerization occur at a certain temperature, forming gums and resinous viscous substances. These sticky materials deposit on the nozzle, intake valve, combustion chamber (cylinder head and piston top) and other parts will become a hard carbon deposit. In addition, due to urban traffic congestion, cars are often at low speeds and idling, which will further aggravate the formation and accumulation of these sediments.