Titan:
Respectfully, you should review FD777's very helpful GC FAQ thread, pinned at the top of this subforum.
What you've got there is
with absolute 100% certainty pre-GC. How do I know? Look carefully at the labels. First, on the fronts, notice that the bottle on the right, which you believed was "new," still has the fuel economy "starburst". This feature disappeared with the advent of the heavier ~12 cSt German product. Unless they've completely reverted to the pre-2002 product, this should not be there. But more tellingly, look at the reverse sides. The "new" bottle on the right still has the "Castrol" logo. BP bought them out in 03 or 04, and as soon as they did, they replaced that Castrol logo with the BP logo you see on the left bottle. This is why I have repeatedly called for batch numbers, and why
it is imperative that you refer to batch numbers, on the bottom of the bottle, in this sort of discussion. For reference, I've captured and marked up your pictures:
I've looked at and handled hundreds of bottles of Syntec 0w-30, in AZ stores from Orlando up to New Orleans, and some to the North on my various travels. I recognize that bottle well, it's either M01... or M02... US made stock. Titan, please report your batch number. Thanks for the effort though.