Here are some key differences between engine oil and transmission oil:
1. Viscosity: Engine oil generally has a higher viscosity compared to transmission oil. Viscosity refers to the thickness or resistance of a fluid to flow. The higher viscosity of engine oil allows it to provide adequate lubrication and protection to the moving parts of the engine, which are subjected to high temperatures and friction. Transmission oil, on the other hand, has a lower viscosity to allow it to flow more easily through the smaller passages and components of the transmission system.
2. Additives: Engine oil contains various additives that enhance its performance and protect engine components. These additives can include detergents to keep the engine clean, dispersants to prevent sludge formation, anti-wear agents to reduce friction and wear, and antioxidants to resist oil breakdown. Transmission oil also includes specific additives, but the additive packages are different and formulated to address the unique requirements of the transmission system.
3. Operating conditions: Engine oil operates in a high-temperature environment and is subjected to extreme pressure and friction generated by the moving engine parts. It must withstand these conditions and maintain its lubricating properties. Transmission oil operates at lower temperatures compared to engine oil, and it experiences different types of stresses related to the meshing of gears.
4. Change intervals: Engine oil and transmission oil have different recommended change intervals based on the vehicle manufacturer's specifications. It is important to follow these guidelines to ensure optimal performance and longevity of the respective components.
5. Mixing: Engine oil and transmission oil should not be mixed, as they have different formulations and properties. Mixing them can compromise their effectiveness and potentially cause damage to engine or transmission components.
