Bump just to add that while I asked for Ester oil at the Nissan dealer (car's 2nd oil change, just under 7k miles), the SA apparently wrote "Customer requests premium 370Z Oil Service". I watched them put Pennzoil Platinum in the car, which I was happy about, since I wanted to go full synthetic at some point.
I was glad to read on this thread and others (yes, "search" is my friend!) that others like this oil, and have found good data on the product. I am wondering if the previous owner had synthetic in the engine, although I saw no sign of this (such as a sticker in the engine bay). Anyone have any theories about why they did this? I got distracted while paying and forgot to ask.
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Rain, snow, sleet, hail: 2009 Mazda 3 sGT HB
Everything else: 2009 370z, PW Touring 6MT
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