For my first post, I thought I'd let Castrol fans know that new PDS's dated this week are up on the Castrol US website, at least for GTX Magnatec 0W-20, 5W-20 and 5W-30. Aside from the news that all three now meet both D1G2 and the new SN Plus specs, the company has actually provided NOACK numbers:
0W-20 - 11.8
5W-20 - 9.7
5W-30 - 8.9 (not bad, even for GDI and T-GDI engines)
FWIW, I have been using GTX Magnatec in my port-injected '17 Elantra SE since I dumped the factory fill at 1,800 miles. Two runs of about 3,000 miles each (new car warranty requirements, you know), first on 5W-20 D1 and now on 5W-30 D1G2, with OEM filter. It has been very quiet and smooth on both, and overall gas mileage has been right in line with EPA estimates - no small accomplishment on our chronically clogged and torn up Pittsburgh area roads, which is basically all the car ever sees.
I'm really happy with it, and for the price for a 5 quart jug at Wally World, I think it's pretty hard to beat for a not-very-demanding, old-dirt driver who wants to use a modern full synthetic without having to tap the 401(k) to do it.
Enough rambling for a first-time BITOGer...