变速箱油是保证变速箱系统清洁的油类用品，能保证变速箱正常工作并起有润滑、散热、清洗、密封和传导动力的作用。那为什么换完变速箱油反而开车不顺畅？济南变速箱油厂家认为多半是以下三个原因。

Transmission oil is an oil product that ensures the cleanliness of the transmission system. It can ensure the normal operation of the transmission and plays a role in lubrication, heat dissipation, cleaning, sealing, and power transmission. Why is it that after changing the transmission oil, the driving is not smooth? Jinan transmission oil manufacturers believe that there are mostly three reasons.

油品

Oils 

由于各种变速箱里的元件各不相同，其所需的油液流动速率、密度、摩擦性和膨胀系数都有所不同。所以更换变速箱油时，必须严格按照说明书上所说的品种和标号去换，如果加错变速箱油，不但会对变速箱内的电子元件和金属部件造成磨损，还会对变速箱的密封造成损坏，导致汽车行驶时出现各种不顺畅的感觉。

Due to the different components in various transmissions, the required oil flow rate, density, friction, and expansion coefficient vary. So when replacing the gearbox oil, it is necessary to strictly follow the variety and label stated in the manual. If the gearbox oil is added incorrectly, it will not only cause wear and tear to the electronic and metal components inside the gearbox, but also damage the sealing of the gearbox, causing various unpleasant feelings when the car is driving.

换油方式

Oil change method

我们常见更换变速箱油的方法有重力换油法和循环换油法。循环机换油法的费用较高，但是换油彻底，更换率高达95%以上，避免新旧油混合在一起造成传动下降。

Our common methods for changing transmission oil include gravity oil change and cyclic oil change. The cost of the oil change method for the circulating machine is relatively high, but the oil change is thorough, with a replacement rate of over 95%, to avoid the mixing of new and old oil causing transmission decline.

重力换油经济实惠而且操作简单，一般车辆需要4~5升变速箱油即可。但是变速箱结构复杂，常压下静态换油的方法仍有的变速箱油不能排出变速箱，换油不彻底。

Gravity oil change is economical and easy to operate. Generally, vehicles require 4-5 liters of transmission oil. However, the structure of the gearbox is complex, and there are still some methods for static oil change under normal pressure. The gearbox oil cannot be discharged and the oil change is not thorough.

新旧油混合在一起也会让油和变速箱不能好好磨合，在换挡时也会出现比较明显的顿挫感。 所以如果想把变速箱内的旧油排干净，建议使用循环机换油。

Mixing new and old oil can also make it difficult for the oil and gearbox to blend in well, and there may be a noticeable jerky sensation when shifting gears. So if you want to drain the old oil in the gearbox thoroughly, it is recommended to use a circulation machine to change the oil.

磨合期

Break-in period

因为旧的变速箱油使用时间过久后会慢慢变得粘稠，出现杂质和沉淀物，而汽车也在不知不觉中习惯变速箱油的改变。

Because old transmission oil will gradually become viscous after prolonged use, resulting in impurities and sediment, and cars are also unconsciously accustomed to changes in transmission oil.

突然换成了又清又稀的新变速箱油，汽车也需要一个缓冲的时间，齿轮之间需要重新适应磨合，所以在刚换完变速箱油后也会出现顿挫的情况，汽车多多行驶，这个情况就会慢慢消失。

Suddenly replaced with a clean and thin new transmission oil, the car also needs a buffering time, and the gears need to adapt to running in again. Therefore, after just changing the transmission oil, there will also be a jerky situation. If the car drives more, this situation will gradually disappear.

如果替换的变速箱油符合更换需求，变速箱内也未曾留下旧油，在经过长时间的行驶下汽车依旧有明显的顿挫感，那就要考虑汽车的变速箱是不是损坏了，这时候好去线下维修门店检查变速箱的情况，以免变速箱出现更大的问题。更多相关内容就来我们网站http://www.jnbsx.com咨询！

If the replacement gearbox oil meets the replacement requirements and there is no old oil left in the gearbox, and the car still has a noticeable jerk after a long time of driving, then it is necessary to consider whether the gearbox is damaged. At this time, it is good to go to an offline repair shop to check the condition of the gearbox to avoid further problems with the gearbox. For more related content, come to our website http://www.jnbsx.com consulting service