I just dumped a jug of that in our aging Lumina this afternoon. I had never even heard of ST Full Syn HM before. Price was right, I figured it was Warren whom I trust, and it seemed perfect for an 18 year old car with 191k.
Gee..I am terribly disappointed. The last time we had a labeling/bottle change was Pennzoil-and that thread was like ten pages long. Even the link referenced above is only three pages.
Some guys (literally) cared more about the Pennzoil label than they did about their ancestry.
I was at WM over the weekend. Saw the new ST bottle. It's still a Warren product - the inkjet-printed dot matrix lot/production numbers have the same structure as a WPP product. I pulled a old ST ATF bottle to confirm this.
Bottle is not Amalie like some think it is. Warren does make their own bottles in-house.