1、 The cause of transmission oil leakage
The reasons for transmission oil leakage are diverse, involving multiple aspects such as materials, design, manufacturing, and use. Here are some common reasons:
Oil seal aging or damage: The oil seal is a key component to prevent transmission oil leakage. After long-term use, aging, hardening, deformation and other phenomena may occur, leading to a decrease in sealing performance and causing oil leakage problems.
Improper installation of oil seals: The installation direction and tightening force of oil seals can affect their sealing performance. If installed improperly, even if the oil seal itself is not a problem, oil leakage may still occur.
Internal wear of the gearbox: The gears, bearings, and other components inside the gearbox that run at high speed for a long time will wear out, leading to increased clearance and easy oil leakage from the clearance.
Transmission casing rupture: The transmission casing may rupture or deform due to external forces such as impact or compression, resulting in oil leakage.
Excessive or insufficient transmission oil: The amount of transmission oil added should be controlled within a certain range, as excessive or insufficient oil may cause oil leakage. Excessive oil will increase internal pressure, causing the oil seal to withstand greater pressure; Insufficient oil may lead to insufficient lubrication and exacerbate wear.
2、 The hazards of transmission oil leakage
Transmission oil leakage may seem like a minor problem, but in reality, it poses great harm. The following are some main hazards:
Insufficient lubrication leads to gear wear: One of the main functions of transmission oil is to lubricate and cool the gears. If there is oil leakage in the gearbox, the friction between the gears will intensify, which will lead to gear wear and deformation in the long run, seriously affecting the service life of the gearbox.
Overheating of the transmission can cause malfunctions: The transmission generates a large amount of heat during operation, which needs to be dissipated through transmission oil. If the oil leakage in the transmission leads to a decrease in fluid, the cooling effect will be greatly reduced, causing the internal temperature of the transmission to be too high, which in turn can cause a series of malfunctions.
Polluting the environment: Transmission oil contains various chemicals. If leaked into the environment, it can cause pollution to soil, water sources, etc., and have adverse effects on the ecological environment.
Safety hazard: When the gearbox leaks oil severely, it may cause the vehicle to suddenly lose power while driving, increasing the risk of traffic accidents. In addition, if oil leakage causes accidents such as fires, the consequences are even more unimaginable.



3、 Solution to gearbox oil leakage
We can solve the problem of transmission oil leakage from the following aspects:
Regular inspection and replacement of oil seals: Oil seals are one of the main causes of transmission oil leakage, so regular inspection and replacement of aged oil seals is the key to preventing oil leakage. Car owners should regularly replace the transmission oil seal based on the usage of the vehicle and the manufacturer's recommendations.
Ensure that the oil seal is installed correctly: When installing the oil seal, attention should be paid to details such as installation direction and tightening force to ensure that the oil seal can fit correctly and tightly onto the gearbox, preventing oil leakage.
Timely handling of internal wear and tear in the gearbox: If there is wear and tear inside the gearbox, it should be dealt with promptly. For example, replacing severely worn gears, bearings, and other components, adjusting clearances, etc., to restore the normal working condition of the gearbox.
Repair or replace the cracked casing: If the gearbox casing is cracked or deformed, it should be repaired or replaced in a timely manner. During the maintenance process, attention should be paid to maintaining the integrity and sealing of the casing to prevent oil leakage.
Control the amount of transmission oil to be added: When adding transmission oil, car owners should strictly follow the manufacturer's prescribed amount to avoid oil leakage caused by excessive or insufficient filling.
4、 Preventive measures for transmission oil leakage
In addition to the above solutions, we can also take some preventive measures to reduce the risk of transmission oil leakage:
Choose high-quality transmission oil: High quality transmission oil has better lubrication performance and stability, which can reduce gear wear and oil seal aging, thereby reducing the risk of oil leakage.
Avoid prolonged high-speed driving: Prolonged high-speed driving can increase the internal temperature of the gearbox, accelerate oil seal aging and wear. Therefore, car owners should pay attention to controlling the speed and driving time during the driving process to avoid prolonged high-speed driving.
Regular inspection of the gearbox: Car owners should regularly inspect the gearbox, including oil level, quality, oil seal, and other aspects. If abnormal situations are found, they should be dealt with promptly to prevent the problem from escalating.
In summary, although transmission oil leakage may seem like a minor issue, it actually hides a huge safety hazard. Car owners should strengthen the maintenance and upkeep of the gearbox, regularly inspect and replace aging components to ensure the normal operation of the gearbox. At the same time, it is important to pay attention to controlling the speed and duration of driving to avoid problems caused by prolonged high-speed driving. Only in this way can we ensure the safety and stable operation of the vehicle.