What Should We Pay Attention To During The Running In Period Of New Cars? How To Maintain The Brake Pads?
What should we pay attention to during the running in period of new cars? How to maintain the brake pads? How to store infrequently used cars? I hope it can help readers.
1、 Precautions for running in period of new car:
1. Do not exceed 60% of the speed before the red line during running in!
During the running in period, it is not allowed to drive intensely to avoid the wear caused by poor lubrication. However, when running in a new car, as long as you do not exceed 60% of the speed in front of the red line. If it is an automatic car, you don't need to consider the problem of speed, everything can be handled by the gearbox itself.
2. The engine oil is easy to consume during running in, so the engine oil should be changed in advance!
The engine oil used when a new car leaves the factory is not for you, but for you to run in the car. However, some manufacturers are not equipped with special running in oil. Because the engine oil is easier to consume during the running in period, it can be replaced in advance.
3. Shift should be based on the engine speed!
In fact, each gear has its own speed range. However, if it is in high gear, there is no need to consider controlling the speed. As long as the speed is matched, the gear will be increased when the speed is high, and the gear will be decreased when the speed is low.
2、 How to maintain the brake pads?
1. Try to avoid sudden braking
Emergency braking has great damage to the brake pads, so you should pay attention to slow braking or use point braking when driving, so the wear of the brake pads is relatively small.
2. Reduce the frequency of braking
In normal driving, we should form a good habit of pre judgment and reducing braking. In normal driving, we can let the engine reduce the speed, and then use the brake to further slow down or stop. You can downshift more when driving.
3. Check the brake pads frequently
When the vehicle has been running for more than 40000 km or more than 2 years, the brake pads are severely worn. It is necessary to check carefully and regularly to see if the thickness of the brake pads has been reduced to the minimum limit value. If it has reached the limit value, it is necessary to replace the brake pads. Under normal driving conditions, check the brake pads every 5000 km. Check not only the remaining thickness of the brake pad, but also the wear condition of the shoe, whether the wear degree on both sides is the same, and whether it can return freely.
4. Position the wheels regularly
When the vehicle has deviation and other problems, it is necessary to make four-wheel alignment for the vehicle in time to avoid tire damage and excessive wear of brake pads on one side of the vehicle.
5. Pay attention to the sound of the brake pads
If the sound of grinding iron sheet can be heard during normal braking, it means that the brake pad has worn to the brake disc. The brake pad should be replaced in time, and the damage of the brake disc should be checked carefully.
6. Pay attention to running in when replacing brake pads
When the vehicle is replaced with a new brake pad, it is necessary to step on the brake more to eliminate the gap between the shoe and the brake disc, so as to avoid accidents. In addition, it is necessary to run in 200 km to achieve the best braking effect, and the brake pads just changed must be driven carefully.
3、 How to store infrequently used cars:
1. Prevent aging and deterioration of rubber products
Rubber products on automobiles, such as tires, transmission belts and dust covers, are often subject to aging and expansion, resulting in poor performance and short service life. In order to prevent the aging of rubber products, direct sunlight and mineral oil contact should be avoided.
2. Prevent metal from rusting
The parking garage should always be ventilated to keep the relative humidity below 70%. The dust, dirt and moisture on the car should be removed in time. The parts easy to rust and the surface of parts should be coated with engine oil, grease or wrapped up with oil paper. The pores on the assembly mechanism shall be sealed to prevent air, moisture and dust from entering the interior.
3. Prevent the antiknock performance of gasoline from decreasing
The antiknock performance of gasoline depends on the octane number of gasoline. The octane number of gasoline will decrease with the loss of light components and the increase of gum content when the car stops driving for a long time, so that its antiknock performance will decrease. Therefore, the gasoline tank should be tightly sealed, and avoid high temperature. It's better not to store gasoline too long.