What should we pay attention to during the running in period of a new car? We all know that when a new car is bought back, it needs to be run in slowly, because the running in period of the new car has a great impact on the service life of the vehicle itself. What should we pay attention to in the running in period of the vehicle? Let's have a look
Precautions for running in period of new vehicles
1. Preheating before starting: This is for EFI vehicles. Before starting, turn the key to the second gear and wait for 5-10 seconds before starting. This is because after the key door is opened, the gasoline pump starts to work to adjust the oil pressure and fuel injection volume. Therefore, start after a few seconds to protect the new engine;
2. Avoid emergency braking: emergency braking will not only impact the braking system in running in, but also increase the impact load of chassis and engine. It is best not to make emergency braking within 300 km of initial driving;
3. Avoid overload: if the new car runs in full load during the running in period, it will cause damage to the parts. Therefore, within the first 1000 km, the domestic car can not exceed 75% - 80% of the rated load, and the imported car can not exceed 90% of the rated load. In addition, in order to reduce the body and power system load, a flat driving road should be selected to avoid vibration, collision or emergency braking;
4. Avoid long-distance running: if the new car runs long-distance during the running in period, the continuous working time of the engine will increase, which is easy to cause wear of parts;
5. Do not drive at high speed: there is a speed limit during the running in period of new vehicles. Domestic vehicles are generally within 40-70 km / h and imported vehicles are generally within 1000 km / h. When the accelerator is fully open, the speed shall not exceed 80% of the maximum speed per hour. Pay attention to the engine tachometer and speedometer during driving to ensure that the engine speed and speed work at medium speed. Generally, During the running in period, the engine speed shall be 2000-4000 rpm;
6. Use high-quality gasoline: the gasoline used by the new car during the running in period shall not be lower than the label specified by the manufacturer. High quality gasoline shall be added as much as possible, and anti-wear oil essence shall not be added, so as to avoid insufficient running in due to sufficient mileage;
7. Do not remove the speed limiting plate in advance: the speed limiting plate is a throttling device installed between the carburetor and the air inlet pipe. The owner cannot remove it in advance. It should be removed after the new car has driven 1000 km and maintained well;
8. Timely gear shifting: timely gear shifting is to avoid driving at low speed in high gear and high speed in low gear. Do not use one gear for a long time, nor make the speed reach the limit in each gear. Generally speaking, the hourly speed of each gear is controlled within 3 / 4 of the top speed, specifically: 25km in first gear, 40km in second gear, 60km in third gear, 90km in fourth gear and 100km in fifth gear;
9. Correct adjustment of ignition system and oil supply system: this can solve the changes of vacuum economizer caused by the installation of speed limiting plate and improve the economy of running in period.
Six taboos in running in period
The running in period has a great impact on the service life and fuel consumption of the vehicle. Due to the wear during the running in period, the surface of the parts will be strained to form a scar. This rough scar will increase the friction resistance, and this scar will also contain sundries containing particles such as metal chips and oil sludge. These sundries will continue to expand the wear during movement and eventually lead to failure, Therefore, the running in quality determines the service life of the whole vehicle.
Avoid overload: if the new car runs at full load during the running in period, it will damage the parts. Therefore, in the first 1OOO km, the load capacity shall not exceed 75% ~ ~ 8O% of the rated load.
Avoid high-speed driving: there is a speed limit during the running in period of new vehicles. Domestic vehicles are usually within 4o~7o km / h and imported vehicles are usually within 1OO km / h. When the accelerator is fully open, the speed cannot exceed 8O% of the maximum speed per hour. Pay attention to the engine tachometer and speedometer during driving to ensure that they work at medium speed. Generally, the engine speed during running in period shall be 2ooo~~4ooo rpm.
Avoid starting a hot car: the new car must be preheated before starting. The so-called preheating actually gives the engine a sufficient lubrication time. Especially for turbocharged models, it must be preheated before starting, and the lubrication time must be at least one minute.
Avoid emergency braking: emergency braking will not only impact the braking system in running in, but also increase the impact load of chassis and engine. It is best not to make emergency braking within 3oo km of initial driving.
Avoid long-distance running: if the new car runs long-distance during the running in period, the continuous working time of the engine will increase, which is easy to cause wear of parts.
Avoid changing the oil too early: the initial oil of the automobile is a special lubricating oil during the running in period. It is required that the oil has low viscosity, good heat dissipation, excellent cleaning and oxidation resistance. Some car manufacturers also add abrasives to help the running in. Therefore, the oil during the running in period can only be changed according to the time specified by the manufacturer and cannot be changed too early.