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Tianjin faw xinxiali a

Dear friends of Tiida A car owners, today, Wang Changbian told you about the matters needing attention in the running-in period of Tiida A car. Recently, Wang Changbian specially visited some industry veterans on the knowledge of the running-in period of Tiida A car, and sorted out the relevant information as follows: Matters needing attention in the running-in period of the new Tiida A car: What is the running-in period of the vehicle? In fact, this part of direct contact is worn away in a certain period of time, which is called the running-in period. Every new car will go through a running-in period in the hands of the owner after it is sold. Because before automobile assembly, each moving part is processed separately, there is geometric deviation when processing parts. After assembly, some moving parts will be in direct local contact, and it is difficult for lubricating oil to enter the friction surface, leading to early wear. Impact of running-in period on automobile: service life and fuel consumption are greatly affected, because the wear and tear during running-in period will deform the surface of parts, produce scars and increase friction resistance, and this scar will also contain fragments containing metal chips, sludge and other particles, which will further expand wear and eventually lead to failure, so the service life of the whole vehicle is determined by the quality of running-in period. Parts that need running-in in the process of automobile running-in include: engine crankshaft, bearing bush, camshaft, cylinder liner, piston ring, timing chain, transmission gear, friction plate, brake band, synchronizer, main reducer, differential, wheel bearing, brake pad (drum), tire tread, etc. During the running-in period, the output power of the engine is consumed due to the large friction resistance, and the oil consumption is high. In addition, the braking system can not achieve the best braking effect, so it is also necessary to control the driving speed. Therefore, we should pay attention to several matters during the running-in period: 1. Control engine speed: Running in running-in period is not to control the running speed of the car, but to control the engine speed. When the engine speed is controlled at 2000 ~ 3000 rpm (gasoline engine), the engine load is lightest. Due to poor lubrication during running-in, it is easy to pull parts when the speed is too high, and the power of the engine will become impact and wear when the speed is too low (the gear is too high). Self-driving cars only need to control the engine speed below 3000 rpm. 2. Reduce the load: Because the best lubrication condition cannot be achieved during the running-in period, increasing the load will aggravate the wear, so reduce the load as much as possible within the first 500 kilometers, and do not exceed 50% of the maximum load during the running-in period of 3,000 kilometers, and then gradually increase the load after the running-in period. In addition, the braking system is not fully run-in, the braking effect is not good, and the load needs to be reduced. 3. Don't change the oil prematurely: The oil is a special lubricating oil during running-in, which requires low viscosity, good heat dissipation, excellent cleanliness and oxidation resistance. Some automobile factories have added abrasives that are beneficial to running-in, so don't change the oil prematurely during running-in. Don't worry about too much wear debris, because they will stay in the filter, just change the oil according to the time specified by the manufacturer. It is also important to change the oil for the first time after the running-in period. It is still necessary to use oil with relatively low viscosity, such as the viscosity of SAE5W30. 4. Don't use additives: New car owners cherish their new cars very much. At this time, they are most likely to be persuaded to buy some so-called ones.

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