Now more and more car owners choose to use automatic transmission, because automatic transmission is lighter and easier. Coupled with the increasingly congested traffic, people prefer to use automatic transmission. But many car owners after buying a car, in the new car stage to care for the car. Once you get into the "boredom" period, you can start to drive, and you don't care. If you have problems, you need to fix them.

而往往汽车发生意外再维修时，因为没有及时维修保养，以致自动变速器的小故障扩大、恶化而导致大事故。因此在日常用车的过程中车主门一定要及时地养护自动变速箱，以免自动变速箱出现故障为行车带来不便。

And often when the car accident repair, because there is no timely maintenance, so that the automatic transmission of small fault expansion, deterioration and lead to major accidents. Therefore, in the process of daily use of the car, the main door must be timely maintenance of the automatic transmission, in order to avoid the automatic transmission failure to bring inconvenience to the driving.

自动变速箱工作过程（液力传动-变扭器、离合器等），由于变扭器在传递发动机时有一部分时间是利用液力实现的，因此这样会形成大量的热能；同时离合器和制动器在工作时产生摩擦力矩时也会产生大的热，因此会导致ATF在一定时间内变质。

During the working process of automatic transmission (hydraulic transmission - torque converter, clutch, etc.), the torque converter uses hydraulic power to transfer the engine part of the time, so a lot of heat energy will be generated; at the same time, when the clutch and brake generate friction torque, they will also generate large heat, so the ATF will deteriorate in a certain period of time.

自动变速箱工作环境（温度、环境等），经常性工作较苛刻环境下，由于变速箱的工作载荷较大导致变速箱的工作温度升高，长时间会导致ATF提前变质。

The working environment of automatic transmission (temperature, environment, etc.) is often harsh. Due to the large working load of the transmission, the working temperature of the transmission rises, and the ATF deteriorates in advance for a long time.

自动变速箱使用条件，驾驶员总追求动感驾驶模式，变速箱总是在发动机高速转速完成换档，长时间达不到高档位的传动比，所以变速箱温度会持续升高从而导致ATF变质。

The use condition of automatic transmission is that drivers always pursue the dynamic driving mode. The transmission always shifts at the high speed of the engine, which can not reach the high gear transmission ratio for a long time. Therefore, the temperature of the transmission will continue to rise, resulting in the deterioration of ATF.

自动变速数据参数的变化（压力、摩擦系数等），在某些工况下由于自动变速箱的一些正常参数下降，导致压力、摩擦系数的降低而影响变速箱的正常运转。

The change of data parameters (pressure, friction coefficient, etc.) of automatic transmission affects the normal operation of transmission due to the decrease of some normal parameters of automatic transmission under some working conditions.