Well, that's all very, very nice, but look at what Nissan Japan is stating about the GT-R service intervals:
Nissan Japan Lowers the Cost of GT-R Maintenance. Granted this is the GT-R engine, but at 266 F Nissan is stating to change your oil "As soon as possible." Sorry, not buying the Midwest Regional CS Manager's position (and it is not from Japan proper), but I am stating this in a nice way. If our engine goes deep six without an oil cooler as this appears to be an "option" and we are using our Z only as a daily driver, then Nissan shall be obligated to replace my engine under warranty.