Originally Posted by UnleashedBeast
Pennzoil Ultra's NOACK for their 5W-20 grade is actually 12.6%, and is verified by their very own .pdf product sheet.
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Pennzoil Platinum's NOACK for thier 5W-20 grade is higher @ 13.2%. They were sneaky hiding this .pdf sheet. It was not listed on their website, I had to internet ninja the link.
I see that you linked to the older SM API-rated Pennzoil Ultra, which is no longer on the shelf. Is Pennzoil lying about the 5% Noack on the SN API Ultra? Data sheet is here: http://www.epc.shell.com/Docs/GPCDOC...1207271342.pdf
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