Hydraulic oil cooler is the use of engine oil as a coolant, typically to remove surplus heat from an internal combustion engine.
The hot engine transfers heat to the oil which then usually passes through a heat-exchanger, typically a type of radiator known as an oil cooler.
The cooled oil flows back into the hot object to cool it continuously. it is available from hydraulic oil cooler suppliers.
Commonly used to cool high-performance motorcycle engines that are not liquid-cooled.
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 an oil cooler.