Low Mount Oil Coolers Cycle Electric Inc. does not recommend installing an oil cooler in front of any regulator. Regulators are solid-state electronic devices that produce heat. They need a flow of cooler air to dissipate this heat. As the temperature of a solid-state device is increased, the probability of failure is increased. If the regulator gets hot enough it will fail. An oil cooler placed in front of the regulator will put the heat from the motor into the regulator. This is not a good idea.