众所周知，发动机最怕高温，变速箱最怕的也是高温。而变速箱油温过高作为常见的变速箱故障之一，平时不注意的话会引发一系列问题，轻则行驶中冲击顿挫，重则会严重损坏变速箱，甚至引发安全事故。那么，变速箱油温为多少才合适呢？

　　As is well known, engines are most afraid of high temperatures, and transmissions are also most afraid of high temperatures. High transmission oil temperature, as one of the common transmission faults, can cause a series of problems if not taken seriously. It can range from minor impacts and jolts during driving to severe damage to the transmission and even lead to safety accidents. So, what is the appropriate transmission oil temperature?

　　变速箱油的最佳油温80°~90°为最佳

　　The optimal oil temperature for transmission oil is between 80 ° C and 90 ° C

　　一般来说，变速箱油温不会超过120℃，以80℃或者90℃最佳，长期高于这个温度会加速衰减变速箱油的性能。当变速箱油温超过115℃时，变速箱控制器的换挡逻辑(类似于电脑程序)会发生变化。为实现降温，换挡逻辑将增加在变矩器上的锁止力，同时限制变矩器打滑时的打滑次数。一旦温度回落到115℃及以下，换挡也将恢复正常状态。

　　Generally speaking, the transmission oil temperature should not exceed 120 ℃, with 80 ℃ or 90 ℃ being the optimal temperature. Prolonged exposure to this temperature will accelerate the degradation of the transmission oil performance. When the transmission oil temperature exceeds 115 ℃, the shifting logic of the transmission controller (similar to a computer program) will change. To achieve cooling, the shift logic will increase the locking force on the torque converter and limit the number of slips when the torque converter slips. Once the temperature drops to 115 ℃ or below, gear shifting will also return to normal.

　　变速箱油温过热显示Oo135°

　　Transmission oil temperature overheating display Oo135 ° C

　　车辆在正常行驶状态下其变速箱油温通常是低于135℃的。但当车辆被过度使用，譬如超负荷拖车，或在四驱模式设定在雪地行驶或越野模式时，车辆在液力变矩器过度打滑的状况下行驶，则可能造成变速箱油温达到135℃。当变速箱油温达到135℃时，加装的变速箱油温过热提示系统将同时通过显示“Oo 135c”(注：“Oo”指“Oil Overheating”)信息和发出钟鸣声，以示预警。预警的目的

　　Under normal driving conditions, the transmission oil temperature of the vehicle is usually below 135 ℃. But when the vehicle is excessively used, such as overloaded trailers, or when the four-wheel drive mode is set to snow driving or off-road mode, driving the vehicle with the hydraulic torque converter slipping excessively may cause the transmission oil temperature to reach 135 ℃. When the transmission oil temperature reaches 135 ℃, the installed transmission oil temperature overheating warning system will simultaneously display the message "Oo 135c" (note: "Oo" refers to "Oil Overheating") and sound a bell to indicate warning. The purpose of warning

　　主动提醒用户停车挂空档拉手刹并保持发动机在怠速状况,从而使液体循环处于降温模式进行快速降温,直到警报讯号不再显示为止,此操作将避免因油温持续升高而存在的安全隐患。

　　Proactively remind users to park, put in neutral, pull the handbrake, and keep the engine idling, so that the fluid circulation is in cooling mode for rapid cooling until the alarm signal is no longer displayed. This operation will avoid safety hazards caused by continuous increase in oil temperature.

　　高温危害变速箱油失去润滑性能

　　High temperature hazards: Transmission oil loses lubrication performance

　　变速箱油的主要作用有四：一是润滑，二是清洗，三是冷却，四是传递动力。变速箱油变质、缺失或过脏，都容易使变速箱高温，造成冲击顿挫；而变速箱高温又能起到催化作用，随着油温的升高变速箱油的润滑性能将逐渐减弱。当油温达到143℃时，变速箱油很可能失去润滑性能，从而导致变速箱内部元件由于摩擦过热而发生故障。一旦用户仍未及时采取有效行动，导致变速箱油温飙升并超过200℃，那么变速箱油将会沸腾甚至飞溅。引起变速箱油高温的原因有哪些？又应该怎么解决？引起高温的原因及解决方案

　　The main functions of transmission oil are four: lubrication, cleaning, cooling, and power transmission. The deterioration, lack, or excessive dirtiness of transmission oil can easily cause high temperatures in the transmission, resulting in shock and jolting; The high temperature of the gearbox can also act as a catalyst, and as the oil temperature increases, the lubrication performance of the gearbox oil will gradually weaken. When the oil temperature reaches 143 ℃, the transmission oil is likely to lose its lubrication performance, leading to internal components of the transmission malfunctioning due to frictional overheating. Once the user fails to take effective action in a timely manner, causing the transmission oil temperature to soar and exceed 200 ℃, the transmission oil will boil or even splash. What are the reasons for high temperature in transmission oil? How should we solve it again? Causes and Solutions of High Temperature

　　01 散热系统工作不良从变速箱出来的高温变速箱油，没有经过充分的冷却，就回到了变速箱，高速旋转的变扭器因为得不到良好的散热负荷会非常大。变速箱油会因为高热造成粘度变化导致摩擦系数变低从而造成离合器的打滑。解决方案：定期清洗水箱

　　Poor operation of the cooling system: The high-temperature transmission oil coming out of the gearbox has not been sufficiently cooled and returned to the gearbox. The high-speed rotating torque converter will have a very large load due to poor heat dissipation. Transmission oil can cause viscosity changes due to high heat, resulting in a decrease in friction coefficient and causing clutch slippage. Solution: Regularly clean the water tank

　　02 使用了假油、劣质油假油或是不符合质量标准的劣质油导致变速器故障的车辆，劣质油对变速器的影响是毁灭性的。

　　Vehicles that use fake oil, inferior oil, or inferior oil that does not meet quality standards and causes transmission failure, the impact of inferior oil on the transmission is devastating.

　　一般来讲，劣质油首先是流动性差，并在高温下结焦，造成离合器的结合速率变化引发换档品质下降，出现换档迟滞或冲击。进而会造成结合脱节、打滑甚至无法行驶，严重时会导致变速器报废。解决方案：购买品质有保障的变速箱油

　　Generally speaking, inferior oil first has poor fluidity and coking at high temperatures, causing changes in the engagement rate of the clutch and resulting in a decrease in gear shifting quality, leading to gear shifting delay or shock. This can lead to disconnection, slippage, and even inability to drive, and in severe cases, it can result in the transmission being scrapped. Solution: Purchase gearbox oil with guaranteed quality

　　03 没有定期更换变速箱油

　　03 Failure to regularly replace transmission oil

　　变速箱和发动机一样也需要定期更换油，不管是新车磨合还是老车的正常磨损，多多少少会磨下一些金属屑，这些金属屑大部分会被滤芯拦截，不过太过于细小的金属屑还是会随着油路进入到我们的自动变速箱中，对一些机械部件造成损坏。

　　The gearbox, like the engine, also needs regular oil changes. Whether it's the running in of a new car or the normal wear and tear of an old car, some metal shavings will be worn down to some extent. Most of these metal shavings will be intercepted by the filter element, but too small metal shavings will still enter our automatic transmission through the oil circuit, causing damage to some mechanical components.

　　解决方案：养成良好的保养习惯，定期更换变速箱油，让爱车保持更好的工况。

　　Solution: Develop good maintenance habits, regularly replace transmission oil, and keep your car in better working condition.

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