Oil Coolers

An oil cooler is a separate, smaller radiator to an engine's main radiator, which maintains an oil supply at a consistent, optimal temperature. Its purpose is to cool the oil passing through the coils, thus improving the engine and the transmission's lifetime. They are situated in front of an engine's cooling system.In automobiles, hot engine transfers heat to the oil which latter-on passes through a heat exchanger. This heat exchanger is generally a type of radiator that has been named “oil cooler”.