The car owners tend to take good care of their cars and often maintain them frequently. However, they do not know that excessive maintenance is easy to fall into maintenance mistakes, and the result will be counterproductive. Myth 1: Three filters are changed together Many car owners immediately went to the 4S shop to replace the three filters as soon as they felt there was a problem with the idling speed of the car. They believed that as long as the three filters were clean, the car would run without problems. And some 4S shop maintenance personnel, in order to earn more hours, also willing to accept the car owner's request to replace the three filters at the same time. According to industry insiders, car three filters do not need to be replaced at all, because from a professional perspective, steam filters are generally replaced at 30,000 kilometers, machine filters are replaced at 5000 kilometers, and air filters can be replaced at 10,000 kilometers. At the same time replacement is a waste. He said that in addition to using mileage as a reference, the owner should also consider the unique weather conditions in the northwest when replacing the three filters. If it is a car that can not be parked for a long time, it is not necessary to replace all three filters, just replace the oil and machine filter. Misunderstanding 2: Engine oil dissatisfaction Master Wang ’s new car has just passed the first guarantee of 5000 kilometers, and ran a high speed of 3000 kilometers a few days ago. He was worried that the new car had insufficient oil, so he added a bottle of oil from his friend. But after a while, the new car started to burn oil. I went to the 4S shop to check and found out that it was the reason why the engine oil was too full. Many car owners know that if the engine oil is insufficient, they will damage the car, but they do not expect that too much oil will damage the car. Industry insiders said that adding too much oil is a mistake that novices are prone to make. If too much oil is added, it will cause vigorous agitation of the crankshaft and the big end of the connecting rod when the engine is working, which not only increases the internal power loss of the engine, but also increases the amount of oil splashed on the cylinder wall, resulting in burning oil. It is recommended that the owner should add the engine oil to the scale on the engine oil dipstick. Joystar Electrical Appliances Manufacturing Co.,Ltd , https://www.fscnjoystar.com