Oil cooling refers to a process in which oil is used as a coolant. The oil is heated by the object it cools and then usually passes through a cooling unit such as an oil cooler, typically a type of radiator, or less commonly a gas decompresser. The cooled oil flows back into the hot object to cool it continuously.
Oil cooling is most commonly used to cool high-performance motorcycle engines that are not water-cooled. The cylinder barrel is air-cooled, as is commonly used for motorcycles, but the cylinder head may require additional cooling. As there is already an oil circulation system available for lubrication, this oil is also piped to the cylinder head and used as a liquid coolant. Compared to an oil system used solely for lubrication, oil cooling requires additional oil capacity, a greater flow rate through the oil pump and also an oil-air oil cooler, or a larger oil cooler if one is already present.
Read more about Oil Cooling: Gas Cooling, See Also
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