Originally Posted by AK370Z

I though I would chime in to this thread. I just came from the Nissan dealer. I had my first oil change done. I was taking to the service manager and he mentioned that the Ester is "Recommended" but not "Necessary" for the 370Z hence it's a bit expansive option (to some). I still went with "Ester" for this time, since he gave me the option (FREE oil change, why not!). Not sure what route (regular vs synthetic vs Nissan Ester) I will go in the future.