I would be interested if others have the same story. I changed my oil on Saturday, and used Redline. This was my second oil change. I moved from the factory oil to Nissan Ester Oil on the first oil change.
This is definitely not my imagination. The car idles much smoother, and the oil temps are down between 5 and 10 degrees. My car consistently had oil temps of 220 to 230. After putting in Redline, the oil temps are running at 210 to 215, and only hit 220 for a short period of time during frequent stop and go over about 30 minutes duration.
I have never had an oil consumption problem...but then again I followed the recommended break-in to the letter. IMHO, the 370Z likes Redline. If she likes it, then I like it too!