谈到变速箱维修，就要说到变速箱更换油的问题，一种是我们常见的重力置换法，另一种则是利用自动循环机的循环替换法，那么这两种更换自动变速箱油方法本质上有何区别呢？下面来解析下。

When it comes to gearbox maintenance, we need to talk about the problem of gearbox oil replacement. One is our common gravity replacement method, and the other is the circulation replacement method of automatic circulator. What is the difference between the two methods of automatic gearbox oil replacement in essence? Let's analyze it.

重力置换法

Gravity displacement method

相信更换过自动变速箱油的车主都知道，重力更换法留下的旧变速箱比较多。于为什么会有更多的残留物，这与自动变速器内部复杂的设计结构直接相关。变速箱中应少包含68升自动变速箱油。其中，阀体模块的液力偶合器约占总油量的50%，有些自动变速器油底壳设计成形状的原因也会占用一部分变速器油液。

I believe the owners who have changed the automatic transmission oil know that there are more old transmissions left by the gravity replacement method. As for why there are more residues, this is directly related to the complex design structure inside the automatic transmission. The transmission should contain at least 6 to 8 litres of automatic transmission oil. Among them, the hydraulic coupling of the valve body module accounts for about 50% of the total oil volume. Some automatic transmission oil pans are designed to take up part of the transmission oil.

当然，在一些自动变速器中，即使拆下油底壳，也看不到变速器滤芯。这就是所谓的不可更换的传动滤芯。这种传动滤芯不是不可能更换的。更换变速箱总成需要拆开滤芯，所以拆开变速箱总成只是为了更换滤芯是弊大于利的。

Of course, in some automatic transmissions, even if the oil pan is removed, the transmission filter element cannot be seen. This is the so-called non replaceable transmission filter element. This transmission filter element is not impossible to replace. The filter element needs to be disassembled to replace the transmission assembly, so it is more harmful than beneficial to disassemble the transmission assembly just to replace the filter element.

重力交换法的优点：操作简单，油耗少，相对经济，而且这种重力交换法正好可以降低高自动变速器换油的风险。

Advantages of gravity exchange method: simple operation, low fuel consumption and relatively economic, and this gravity exchange method can just reduce the risk of oil change of high kilometer automatic transmission.

提醒大家：重力更换方式二次污染严重，但请相应缩短下次更换变速箱油的时间和数。这样做的目的是让您的变速箱更好地工作环境。

Remind you: the gravity replacement method has serious secondary pollution, but please shorten the time and kilometers for the next replacement of transmission oil accordingly. The purpose of this is to make your gearbox work better.

循环替换法

Cyclic substitution method

济南变速箱维修厂家认为循环置换法比重力置换法复杂。复杂的步骤是循环置换法和重力置换法的结合。除了循环器的等量交换外，一些自动变速器在更换机油时，不仅要靠重力先放油，还需要拆下油底壳，更换变速器滤芯，更换得更彻底、更干净。同时，更换变速箱油前、中、后的每一步都不能出错。简单来说，更换工艺要求比较高。

The manufacturer thinks that the gravity replacement method is more complex than the gravity replacement method. The complex step is the combination of cyclic displacement method and gravity displacement method. In addition to the equivalent exchange of the circulator, when changing the oil of some automatic transmissions, it is not only necessary to drain the oil by gravity, but also need to remove the oil pan and replace the transmission filter element to make the replacement more thorough and clean. At the same time, make no mistake in every step before, during and after changing the transmission oil. In short, the replacement process requires relatively high requirements.

循环更换方法是设备连接后，车辆起火，自动变速箱对循环机建立一定的压力，使变速箱与循环机连接并循环。更多的旧油从车身模块和液力耦合器中释放出来。一般来说，正常的自动变速箱循环更换油在十升左右。更换变速箱油的更终清洁度取决于变速箱的数和使用多少油。

The cycle replacement method is that after the equipment is connected, the vehicle catches fire, and the automatic transmission establishes a certain pressure on the circulator to connect and cycle the transmission with the circulator. More old oil is released from the body module and hydraulic coupler. Generally speaking, the normal automatic transmission cycle replacement oil is about ten liters. The final cleanliness of changing transmission oil depends on the mileage of the transmission and how much oil is used.

循环更换方式的优点：旧变速箱油残留量小，新油二次污染不严重，变速箱可以始终在良好的工作环境中工作。

Advantages of circulating replacement method: the residual amount of old transmission oil is small, the secondary pollution of new oil is not serious, and the transmission can always work in a good working environment.

此外提醒您，不同类型的变速箱油它不能通用的，大部分自动变速箱都有自己专属的变速箱油，手动变速箱油还有粘度和等级之分，因此根据实际情况来选择油并换油，更多相关内容就来关注我们的网站www.jnbsx.com看看资讯吧！

In addition, I would like to remind you that different types of transmission oil cannot be used in general. Most automatic transmissions have their own transmission oil, and manual transmission oil can also be divided into viscosity and grade. Therefore, select and change the oil according to the actual situation. For more relevant contents, please pay attention to our website www.jnbsx.com Check out the information. Www. 68mn!