There will always be some fine flaws on the surface of the new transmission parts of the car, so that the joints and meshing of the parts during operation are not tight enough, resulting in a sharp friction at the contact points. If the running speed is too fast, permanent damage to the parts may occur due to excessive friction at the contact point or excessive load. Therefore, in the initial operation of the new automotive transmission components, the relative speed of the contact points should not be too high and the lubrication should be replaced in time to prevent the metal suspended in the lubricating oil from breaking into the friction surface and accelerating the wear of the parts. After a period of running friction, the new transmission parts make the contact with the mating surface very close and the surface is very smooth, called running-in. The new car running-in period must remember these 6 major issues!
1. refuse to brake
Emergency braking (quick braking) will not only increase the impact load on the chassis and engine of the car, but also affect the braking system that is running in. It is recommended that you drive gently within 300 km of the first driving, and do not slam on the brakes.
2. Refuse to drive at full load
The new car should not be fully loaded within 1000 km of the initial driving. Don't be wrong, if you are often fully loaded at the beginning of the car, it is likely to cause damage to the machine. Under normal circumstances, the new vehicle weight during the running-in period should not exceed 80% of the maximum load.
3. Refuse to change the oil in advance
Many cars take half a month to a month from the factory to the destination, and occasionally when they encounter a new car that has been parked in Curry for a month or two, the troubled car owners are sensitive and think it is long. The placed oil will deteriorate. As a result, when you pick up the car, you will be asked to make the first insurance and replace the "expired" oil.
In fact, the original engine oil of the automobile is a special oil for the running-in period. This special lubricating oil has the characteristics of strong heat dissipation, low viscosity, strong oxidation resistance and excellent cleaning effect. Some car companies also specially add abrasives to them. The auxiliary car owner runs the car.
Therefore, it is recommended that those who love the car eagerly, the first insurance is still done according to the number of kilometers required by the manufacturer. Premature replacement is not necessarily helpful to the car.
4. Reject high speed
There is also a strict requirement for the speed of the new car during the running-in period. In general, it is recommended that the maximum speed be 80 kilometers and not more than 100 kilometers. At the same time, we must observe the tachometer, the daily speed of 2000-4000 rpm, not more than 4000 rpm.
5. Refuse long distance
Many people say that the new car is going to "pull high speed". In fact, this is a misunderstanding of many people. Pulling the high speed is not to let the new car run far, but at the end of the running-in period, it is necessary to let the gears run at high speed for a period of time.
If you really let the car run long distances, the continuous high-intensity work of the engine will cause wear and tear on the core parts, which will affect the service life of the car.
6. Refuse to start without hot car
New car is not hot? Hot cars are easy to deposit carbon? Don't be fooled by the little friends. The hot car here does not mean to let the car idle for a few minutes, but wait a minute after starting to give the engine a lubrication time, especially the turbocharged engine. note.
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