Originally Posted by Josh@STILLEN

We're still pushing moderate temperatures out here in Southern California, and I don't discredit what Z1 is saying in regards to oil temps, but it's such cheap insurance to swap to a thermostatic plate. Moreno Valley can have some cold times, especially in the upcoming months.

The thermo plates begin opening at 160 degrees and are fully open at 180.. it just helps to bypass enough to get the engine temps up and into the optimum range.

All of the cold temp issues are more of a precautionary tale to those who want to completely abuse the vehicle with hard driving when the engine isn't up to temp, and oil needs to be performing at it's best, which it doesn't do at those low temperatures.

Will you have a problem, potentially not.. but as it dips into as freezing of temperatures as we get out here in SoCal, I'd be much happier with a thermostatic plate which will cost you a small fraction of the price youv'e paid for the oil cooler.. but perhaps I'm overly cautious, but definitely would want to make concessions for the cold, especially for those who live in "real" weather areas..