I have had my 370z for 13 months (15,000 miles) now and the only time I have an issue with the oil temp is when aggressively climbing some pretty steep grades in the Rockies for some length of time. I have had it climb to 250 degrees so I back off a bit and it cools pretty quickly. On the flatlands with outside temps in the 90s and speeds in the 90s I've had no issues.
It's fairly noisy in the cabin on concrete highways but driving on asphalt is quiet. I really love driving this car!

I fully agree with this as i'm around the same in mods and power upgrade. You really feel and hear the difference, i went with an intake, HFC, CBE. :driving: