What are the specifications of transmission oil?
1 Answers
Manual transmission oil, also known as gear oil, is divided into five grades: GL-1 to GL-5. Here is the relevant information: 1. Manual transmission oil, commonly referred to as gear oil, is primarily used for lubrication. The American Petroleum Institute categorizes vehicle gear oils into six classes based on performance: GL-1, GL-2, GL-3, GL-4, GL-5, and GL-6. Among these, GL-1, GL-2, and GL-3, which are more suited for heavy-duty applications, have been phased out in the market. Currently, household vehicles typically use GL-4 and GL-5 (GL-6 is used for buses). 2. In terms of oil characteristics, the most noticeable difference is that manual transmission oil has a higher viscosity compared to automatic transmission oil, and the replacement interval is generally shorter. Most household vehicles require manual transmission oil replacement every 40,000 to 60,000 kilometers. 3. The main types of transmission oil currently used in China include DEXRON, DEXRON-II, and DEXRON-III (produced by General Motors), ATF-F (produced by Ford), as well as domestically developed No. 8 oil (mainly used in various passenger car hydraulic automatic transmission systems) and No. 6 oil (primarily used in the hydraulic torque converters of locomotives and heavy-duty vehicles).