Hi as my focos is going to be spending a lot of time on the track this year and it's running a supra lsd in the rear I'm thinking of putting a oil cooler to it . But I think it would be best to run it with a switch that when the oil gets to hot will turn on and off as it needs to . Has any one got any forts on a temp range it would be best for the switch to be looking for and no the best place to get a switch to do the job . Thanks