Is Transmission Fluid the Same as Gearbox Oil?
2 Answers
Transmission fluid is not the same as gearbox oil. Transmission fluid is divided into manual transmission fluid and automatic transmission fluid, while gearbox oil is specifically used for automatic transmissions, and manual transmissions use gear oil. Gearbox oil is a lubricant that maintains the cleanliness of the shifting system, providing lubrication and extending the lifespan of the transmission components. The replacement interval for transmission fluid depends on actual driving conditions: automatic transmission fluid is recommended to be replaced approximately every 40,000 kilometers, while manual transmission fluid should be replaced every three years or approximately every 100,000 kilometers. Due to different specifications, the friction coefficients of transmission fluids vary. It is essential to use the appropriate oil based on the technical specifications of the vehicle's transmission to maintain optimal mechanical performance and prolong its lifespan.
Yes, transmission fluid and gearbox oil are actually the same thing, just with different names. In my years of working in car maintenance, I've often been asked this question. 'Gearbox' is a colloquial term for the transmission, which is more commonly used in places like Guangdong and other southern regions, but it essentially refers to the lubricating fluid used for the transmission. The main functions of this fluid are to protect gears and bearings, reduce friction, prevent overheating, and control gear shifting in automatic transmissions. If not replaced in time, it can easily lead to transmission failure, which can be very costly to repair. I recommend checking it every 40,000 to 60,000 kilometers, or as specified in the vehicle manual. Make sure to choose the right specification when replacing, such as ATF or MTF fluid, and don't buy the wrong brand. Developing a habit of regular maintenance can prevent major issues. In short, no matter how the name changes, it's still that crucial fluid.
