Is it necessary to see the following training? Is high-speed training necessary? Theoretically speaking, high-speed driving will increase mechanical losses. Therefore, if old cars often run at high speed, they will age faster. For a new car, the mechanical parts have to go through a certain initial running-in to enter a good running state, not only the engine, but also the gearbox, axle and other auto parts. So a new car can speed up the time for the car to enter the best state, so it is possible to accelerate. But even if you don't pull it, it's just that the car slowly enters the best running state, but relatively speaking, the mechanical wear is reduced and the macro service life of the car is longer. When do you get on the highway? If you really want to go to Lala Expressway, you have to choose the right time. My personal analysis is that never use the first tank of oil (that is, before the first oil change) to increase the speed. Because when the engine is pulled up at high speed, the working speed of the engine is high, the mechanical wear is the biggest, and the metal chips and impurities in the first box of engine oil are the most. Using this kind of engine oil with a lot of impurities to pull up at high speed will greatly increase the engine loss and even cause abnormal wear. In this way, the car will not be in the best condition after the running-in period. So when will it be ready? I think the better time is after the first oil change (note that some cars will change the oil during the first maintenance, while others will only check the oil change during the second maintenance). At this time, the engine has gone through a certain running-in, and the newly changed oil fragments are few, which can ensure the engine to run smoothly at high speed and achieve the effect of high-speed running-in without aggravating wear. By the way, the above principle that the driving mode is determined by the oil condition also applies to classic cars. For example, if your oil has just been changed, you can take advantage of the good condition of the oil and drive it to burn carbon; However, if a box of engine oil has traveled thousands of kilometers and is close to the oil change time, don't burst it, otherwise it will aggravate the engine wear due to poor engine oil condition (mainly deterioration, debris and dust).

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