Generally speaking, the tires of a new car must travel more than 200 kilometers to achieve the “best adhesion”; the brake pads must travel more than 400 kilometers to achieve the “ideal friction”. The moving friction parts need more than 1000 kilometers of running-in to establish a good cooperation relationship.
Especially the heart engine of the car, the surface flatness, bearing area and coordination relationship of new car parts do not have the ideal degree of design, and the mechanical, electrical, oil, water and gas system operating conditions of the engine assembly The optimal overall balance is not achieved. These transitions are known as the new car break-in period.
Notes during the running-in period:
1. It should be slow rather than fast. When the new car is first driven, the speed should be controlled within 60-80 km/h.
2. Warm up the car during cold start. During cold start, it is best to preheat the watch pointer to the middle of the scale line, and the water temperature reaches above 40 ??, and then slowly start the road.
3. Avoid full load and overload. The full load or overload will cause great damage to the parts of the new car. The load must be reduced according to the load regulations of the model, and it is advisable not to exceed 70% of the specified load capacity.
4. The sudden braking will not work. Sudden braking is a bad driving habit, especially the impact damage to the engine, braking system and chassis of a new car. When driving, you should deal with the situation in advance, slow down and downshift; if there is an emergency situation that requires emergency braking, you should also depress the clutch pedal first to reduce the impact damage to the engine.
5, routine inspections should be remembered. New cars must adhere to routine inspections, find and eliminate problems in advance, and prevent future troubles. Check the oil, water, and gas (oil, brake oil, battery water, cooling water, and tire air). Once found to be missing, they should be replenished in time. , dripping, leaking and leaking in a timely manner; secondly, check whether there are abnormal noises in various parts of the car, and repair them in time if abnormal noises are found;