很多车主都知道，如果发动机缺机油，车辆会亮起机油报警灯，以便检查油尺位置及添加适量机油。而与发动机同样重要的变速箱是没有液位报警的，对于任何相对摩擦运动的机械部件油量稳定是非常重要的，那变速箱如果缺油车辆会有哪些表现呢？

　　Many car owners know that if the engine runs low on oil, the vehicle will light up the oil warning light to check the dipstick position and add the appropriate amount of oil. The gearbox, which is equally important as the engine, does not have a fluid level alarm. It is very important for any mechanical components with relative frictional motion to have stable oil levels. So, what will happen to a vehicle if the gearbox runs out of oil?

　　一，给油不走道这是自动变速箱缺油最直观的表现，这主要是因为变速箱油不足，变速箱内部建立不起来足够的液压压力，离合器片等摩擦部件受到的压力较小，与钢片之间打滑、磨损导致的。另外，深踩油门才起步、行驶无力、上坡路困难都是自动变速箱缺油的表现。

　　1、 This is the most obvious manifestation of a lack of oil in an automatic transmission, mainly due to insufficient transmission oil, insufficient hydraulic pressure cannot be established inside the transmission, and friction components such as clutch plates are subjected to less pressure, resulting in slipping and wear between the clutch plates and steel plates. In addition, starting with a deep press on the accelerator, weak driving, and difficulty on uphill roads are all manifestations of automatic transmission fuel shortage.

　　二，变速箱异响手动变速箱缺油异响是最明显的，当踩下离合器踏板后异响消失，抬起离合器踏板后异响会重新出现。因为手动变速箱的齿轮组基本是硬性咬合，缺油会导致异常磨损，严重的甚至齿面烧蚀变蓝。手动变速箱经历缺油故障后，基本上要更换变速箱内部的齿轮与轴承，维修费用还是很高的。

　　2、 The abnormal noise of manual transmission due to lack of oil is the most obvious. The abnormal noise disappears when the clutch pedal is pressed, and reappears when the clutch pedal is lifted. Because the gear set of a manual gearbox is basically rigidly engaged, a lack of oil can cause abnormal wear, and in severe cases, even tooth surface erosion and turning blue. After experiencing a lack of oil in a manual gearbox, it is basically necessary to replace the gears and bearings inside the gearbox, and the maintenance cost is still very high.

　　某第三方检测机构拆解报告显示：

　　A dismantling report from a third-party testing agency shows:

　　长期缺油30%的变速箱，行星齿轮磨损量达正常值的8倍。

　　A gearbox with a long-term oil shortage of 30% has planetary gear wear that is 8 times the normal value.

　　CVT钢带在油量不足时，使用寿命缩短至原厂的1/5。

　　When the oil level is insufficient, the service life of CVT steel strip is shortened to 1/5 of the original factory.

　　维修费用对比：补充油液仅需200-500元，更换总成达万元以上。

　　Comparison of repair costs: Adding oil only costs 200-500 yuan, while replacing the assembly costs over 10000 yuan.

　　可以肯定的是，任何变速箱，只要长时间漏油，一定会造成变速箱油不足。但是变速箱的密封性还是很高的，很多车型的变速箱都不会有类似滴油的故障，有也是轻微渗油的现象，渗油要想达到缺变速箱油的程度，需要很长时间的积累。所以为了避免变速箱缺油的故障，定期的检测就尤为重要了。

　　It can be certain that any gearbox that leaks oil for a long time will inevitably cause insufficient transmission oil. However, the sealing performance of the gearbox is still very high. Many car models' gearboxes do not have similar oil dripping faults, and there is only slight oil leakage. To reach the level of insufficient gearbox oil leakage, it takes a long time to accumulate. So in order to avoid the fault of insufficient oil in the gearbox, regular inspections are particularly important.

　　先说手动，手动变速箱的体上有一个加油口，拧开这个加油口螺丝，只要有油液流出来，或者用手指伸进去，正好能摸到变速箱油液面，就说明变速箱油是足够的。

　　First, let's talk about manual transmission. There is a fuel port on the body of the manual transmission. By unscrewing the screw of this fuel port, as long as there is oil flowing out or reaching in with your fingers, you can feel the level of the transmission oil, which means that the transmission oil is sufficient.

　　自动变速箱的油量检测，需要油温达到正常的工作温度，对于有油尺的车型，我们直接从油尺上就可以看到变速箱油的液面高度，只要在上下限之间就可以了；如果没有油尺，我们需要打开加油口螺丝，有少量的油液流出，说明变速箱油量正常，如果没有油液流出，说明变速箱油不足，需要添加。

　　The oil level detection of automatic transmission requires the oil temperature to reach the normal working temperature. For models with a dipstick, we can directly see the height of the transmission oil level from the dipstick, as long as it is between the upper and lower limits; If there is no dipstick, we need to open the fuel filler screw. If there is a small amount of oil flowing out, it indicates that the transmission oil level is normal. If there is no oil flowing out, it indicates that the transmission oil is insufficient and needs to be refilled.

　　车辆故障提示-虽然变速箱没有液位报警功能，但是很多车型都会给出变速箱故障或者变速箱油温高的报警。如果变速箱严重缺油，这些警示灯就会亮起。这种情况下检查一下变速箱有没有漏油，有问题及时维修。

　　Vehicle malfunction prompt - Although the transmission does not have a fluid level alarm function, many car models will give an alarm for transmission malfunction or high transmission oil temperature. If the gearbox is severely short of oil, these warning lights will light up. In this case, check if there is any oil leakage in the gearbox and repair it promptly if there is a problem.

　　总之，变速箱缺油的表现可能因不同的汽车型号和变速箱类型而有所差异。如果驾驶时体验到到上述任何一种情况，建议尽早对变速箱进行检查和维修。

　　In short, the performance of gearbox oil shortage may vary depending on different car models and gearbox types. If you experience any of the above situations while driving, it is recommended to inspect and repair the gearbox as soon as possible.

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