A Mishimoto Thermostatic Oil Cooler Kit comes combines a high efficiency Mishimoto oil cooler kit with hoses, fittings, and a thermostatic sandwich plate. Using a thermostat ensures that the oil isn't kept too cool to lubricate the engine on road driven car.Thermostatic sandwich plate ensures oil is at ideal temperatureKeep oil cool to protect engineIncrease oil lifespanFor cars that aren't under heavy load all the time, an oil cooler can be a mixed blessing.Engine oil, like porridge, needs to be not too hot but it also needs to be not too cold. You need the oil to reach a certain minimum operating temperature for it to be protecting your engine fully.The ideal solution is to add a thermostat into the system, so oil is only passed through the additional cooler when it reaches a particular temperature keeping it cool, but not too cool.These Thermostatic Oil Cooler Kits from Mishimoto come with a thermostat, as well as a fitting kit.The fitting kit normally includes two stainless braided