Looks like the new Ultra has a very low NOACK Volatility. High quality base oil. Probably be GTL oil from Shells' refinery in Bahrain. I am sure they both will be getting better and better.
The technical support team at Pennzoil are really outstanding, friendly and helpful. He took a couple days to find out, but checked with the lead product engineer for Ultra and verified that the numbers on the pds are accurate. This will be my next oil. No idea if it's GTL or what.
The NOACK values for GTL GP III+ oils are very good but are still higher than what Pennzoil is claiming for their oils.
Furthermore Pennzoil is claiming for their 5W-20 a lower NOACK percentage than their 5W-30? That would only be possible if the 5W-20 is using heavier base oils which makes no sense.
No I believe the numbers are wrong as all other knowledgeable members including Tom NJ.
Besides even if the numbers are what they should be for a GTL based oil I'm not all that impressed with the other stat's such as the below average VIs.
I quite agree ! Unbelievably low for a Grp III oil. This topic has gone round and round on here before with no real clarification/confirmation of PDS OR GTL base status.
It looks like there's possibly a 0W-20 PDS, given that the PDF's title (right click -> Document Properties...) is "Microsoft Word - TDS Pennzoil Ultra GF-4 TDS SB1 without 0W-20.docx".