How often do you clean the fuel injectors?

The owner asked me that my car was bought last year, and it's been a little over a year now. During the maintenance, someone asked me if I needed to clean the nozzle. I didn't think it was necessary. Later, I asked others, and it was true that some people often cleaned the choke. Ask the experts, is this really necessary? If so, how often is it better to clean the nozzle? Experts answer that the fuel nozzle is the key component of the engine. If the fuel nozzle is blocked, it will seriously affect the performance of the car. However, many car owners often do not pay attention to the cleanliness of the fuel nozzle, which may easily lead to the blockage of the fuel nozzle. Because gasoline itself contains colloid and impurities, these things will form deposits in the fuel tank and intake pipe, and over time these deposits will form carbon deposits in the fuel nozzle, intake valve and other parts. In addition, urban traffic congestion, cars have been driving at low speed and idling, which will also aggravate the formation of sediments. At present, it is recommended that the owner of the general electronic fuel injector clean it once every year or 20,000 kilometers. In addition, if you don't use the car for a long time, or need to drive for a long time, I suggest you also clean the oil nozzle frequently. In addition, in order to reduce the formation of carbon deposits in automobiles, some riders choose to use gasoline additives. Of course, there is still some discussion about the efficacy of gasoline additives. Car owners have also discussed the experience of using gasoline additives. Owner "Wuxi Struggle": I have used both the original factory and the 3m model. I feel that gasoline additives still have some functions, such as acceleration and sound, which helps to improve the waiting speed in winter. The fuel-saving effect is a little but not obvious. 3m is more cost-effective, and the original one is a little more expensive. Car owner "Kang Xiongying": In fact, there is a market only when there is demand, but some people in 4S stores may exaggerate a little in order to sell things. Additives are like vitamins. If you don't give them to the car, they will pass like that, but if you give them to the car, the car will run even harder. For more riders' opinions, please click >>.