1. Automatic Transmission: Vehicles with automatic transmissions typically require a radiator with an integrated oil cooler. The oil cooler is designed to cool the transmission fluid, which helps prevent overheating and ensures optimal transmission performance. Automatic transmission fluid (ATF) circulates through the transmission, transferring power and lubricating components. As ATF heats up during operation, it can lose its viscosity and deteriorate, affecting the transmission's efficiency. The oil cooler helps dissipate heat from the ATF, maintaining its proper temperature and preventing potential transmission issues.
2. Manual Transmission: Vehicles with manual transmissions generally do not require a dedicated oil cooler in the radiator. Manual transmissions use gear oil or manual transmission fluid (MTF) for lubrication, and these fluids typically operate at lower temperatures compared to automatic transmission fluid. Manual transmissions generate less heat due to the direct mechanical connection between the gears, eliminating the need for an external oil cooler.
To summarize, radiators in automatic transmission vehicles serve the dual purpose of cooling the engine coolant and transmission fluid, while radiators in manual transmission vehicles primarily focus on cooling the engine coolant. The presence of an oil cooler is the key difference between the two radiator types.
