What is transmission oil?

1 Answers
Amy
07/25/25 2:23am
Automobile transmission oil can be broadly divided into two types: one is automatic transmission fluid (ATF), and the other is manual transmission oil. Here is a partial introduction: 1. Transmission oil: Transmission oil is a lubricant used to keep the gear system clean, ensuring the normal operation of the transmission and extending the service life of the transmission device. 2. Automatic transmission fluid: Abbreviated as ATF (Automatic-Transmission-Fluid), it is specifically designed for automatic transmissions. Under normal driving conditions, automatic transmission fluid is typically replaced every 120,000 kilometers, and under harsh driving conditions, it is replaced every 60,000 kilometers. 3. Manual transmission oil: Generally referred to as gear oil, gear oil is classified into five grades (GL-1 to GL-5). GL-1 to GL-3 have lower performance requirements. GL-4 is used for lubrication under conditions of high-speed low-torque and low-speed high-torque, such as in automobile hypoid gear drive shafts and manual transmissions. GL-5 has the highest performance level and is used for lubrication in hypoid gear drive shafts and manual transmissions under severe operating conditions with high impact loads. Under normal driving conditions, manual transmission gear oil is generally replaced every 2 years or 60,000 kilometers.
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