The spark plug is an indispensable and important part of the engine, if this part is broken, the engine will not be able to work normally, not to mention broken, that is, the ignition effect is not good, which will directly affect the power output of the engine, so that the car will drive up with high fuel consumption and weak power. In serious cases, it will also increase carbon deposits and even lead to pulling cylinders, so it is very necessary to find the problems of the spark plug in time and replace the spark plug in time. But when we go to maintain the car, the 4S shop calls for replacement at every turn, is it necessary to change it so diligently? How often is it better to change the spark plug? Today, I will explain it to you at one time.
I don't know what's going on recently, poked the spark plug's nest, friends around me but anyone who likes to go to the 4S shop to maintain the car, will be called to change the spark plug, my classmate at the end of the year was just called, and then to my friend to meet called to change the spark plug, and then my cousin's car was scraped the rear wheel fender, go to the 4S shop to ask the price by the way to maintain the car, also called to change the spark plug. The most hateful thing is that my cousin's car was replaced with a spark plug last year at the 4S shop where he worked, and this year he came back to the 4S shop in his hometown to maintain and replace it, and they didn't record it? Or do you have to change it once a year as long as you are willing to change it?
I have been driving for 12 years, and I have changed the spark plug once, not because I am reluctant to change it, but every time I suspect that there is a problem with the spark plug and want to change it, I am reprimanded by my friend. The first time I changed the spark plug was in his shop, at that time the car was driven for more than 40,000 kilometers, I think the fuel consumption is a bit large, the car feels like the power is not very good, but there is no obvious fault, the result is that the spark plug is broken, I directly changed a set. Later, when I drove to 90,000 kilometers, I was greedy for cheap gasoline and added inferior gasoline, and found that the car had high fuel consumption and shaking, and I suspected that the spark plug should be replaced, after all, the first time I changed it was only 40,000 kilometers, and I was reprimanded, saying that I added the wrong oil, I didn't worry about asking him to take the spark plug out for inspection, and found that the spark plug was intact, so it was not replaced.
In fact, the replacement cycle of the spark plug is 30,000 kilometers, and many people's cars go back to the 4S shop for maintenance once after 5,000 kilometers, so basically you will find that the 4S shop is called replacing the spark plug after five or six maintenance. Some cars are not often maintained in the 4S shop, after you drive tens of thousands of kilometers, you want to go back to do maintenance on a whim, people see your kilometers, will also ask you to change the spark plug to wash the throttle, this is the regular operation of the 4S shop, you are willing to change it for you, anyway, the new one is better than the old one. But for us consumers, if I change my things before they break, I will feel like I have been pitted.
I'm not asking you not to change the spark plug regularly, because if the spark plug is of poor quality, the ignition electrode is easy to be corroded, and once it is corroded and broken, it will fall directly into the cylinder, which means that there is a foreign body in the cylinder, and this electrode is metal, very hard, and will strain the combustion chamber with the movement of the piston, commonly known as pulling the cylinder. Therefore, the spark plug can not wait for serious damage to be replaced, but in the process of daily use of the car, the spark plug is not well ignited, there will be a phenomenon of high fuel consumption and weak power, pay attention to check it when driving enough for 30,000 kilometers, and find that there is a problem and then replace it.
My friend said that he has been repairing cars for more than 20 years and has never seen a spark plug so bad that the electrodes will break. On the contrary, if the ignition is not replaced in time, the spark plug with poor ignition will cause the engine to be prone to carbon deposit. After driving a car for tens of thousands of kilometers, even if you plan to change the spark plug, I don't recommend you to change it in the 4S shop, because the 4S shop has to earn double the money for repairing the car, and the labor fee is charged, and the parts and components have to be earned in half, which is more expensive. It will also be much cheaper to change the original factory in an outside repair shop than a 4S shop. Take my own car as an example, the material cost of changing the spark plug in the 4S shop is 300, but they have to charge another 150 for man-hours, which will cost 450 to get it done. But I changed the good quality in the repair shop outside, including the repair shop owner, and the profit margin was only 280.
Therefore, the replacement standard of spark plugs is 30,000 kilometers, but there is no need to change them after 3 kilometers. You just remember the standard of 30,000 kilometers, drive tens of thousands of kilometers of cars, I suggest that you check it every time you maintain it, and replace it in time if there is a problem, some good quality spark plugs are no problem to drive 70,000 or 80,000 kilometers. If you are not short of money, you can consider changing it in a 4S shop, but I think you can use better materials for the same amount of money in an outside repair shop, and I hope my explanation can help everyone.