I believe this oil talk is all crap. My RSX and my Sky Redline, Expedtion all have VVT dual OHC or SOHC, high RPM.
I think the problem lies in the fact that the motor has no oil cooler even my Expedtion has and oil cooler. My Sky has a cooler for everything. My RSX has the same size oil/water cooler as the 2012 370z. This is on a 2.0! My sky and RSX have oil squirters as well to help cool the motor.
This engine seems like it was designed to fit many cars and the just shoe horned it in the Z. Most of Nissans line up are base on the same chassis, wiring and motor including the Z.
I would not be surprised if it does not have oil squirters that spray on the piston skirts which help keep the motor and oil cool. The valve train design -the VVT was in my 1985 Toyota MR2. Yet was in my 1991 Toyota MR2.
In any case I am at my own cost going to add an oil cooler which is sad for a car at this price range. I am going to use Mobile 1 which I use in all my cars and some have 300k and still going strong!
To me any car that need to use a specialized oil is not special it's a design failure. A failure which will cost the buyer extra at every change and modification to run properly.
A company that can design the GTR can't seem to put together a decent motor for the 370z enthusiasts car is not a company I really want to stay with in the future.
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