Originally Posted by
ZR
^ We'll have to agree to disagree, siding with Slope on this one.
To me the ideal set up would be a 190deg stat with an thermostatically controlled oil cooler to ensure constant (as constant as possible) temps + ability to keep temps from climbing. You'll find most run a cooler stat because the cooling system alone isn't able to control max temp under a wide range of driving conditions and outside temps. In this instance, engine spends far too much time running at temps that don't bring oil temps up correctly plus keep the computer bouncing things from open to closed loop which in turn makes for utterly filthy engine internals.