Is Gear Oil the Same as Transmission Fluid?
1 Answers
Gear oil and transmission fluid are the same. Transmission fluid includes manual transmission fluid and automatic transmission fluid, with manual transmission fluid commonly referred to as gear oil. Automatic transmission fluid has a higher grade and is also called drive fluid. Regular gear oil cannot be used in automatic transmissions; automatic transmission fluid is required. Gear oil primarily refers to the lubricant used in transmissions and rear axles, differing from engine oil in terms of usage conditions, composition, and performance. Gear oil mainly functions to lubricate gears and bearings, prevent wear and rust, and assist in heat dissipation for gears. Automotive gear oil is used in gear transmission mechanisms such as steering systems, transmissions, and drive axles. Due to the high surface pressure during gear transmission, gear oil plays a crucial role in lubrication, anti-wear, cooling, heat dissipation, anti-corrosion, rust prevention, cleaning, and reducing gear surface impact and noise.