I contacted Pennzoil with this question:
Pennzoil Porsche A40 requirement?
Why does Pennzoil Platinum Euro SAE 0W-40 Full Synthetic motor oil NOT list Porsche A40 but Pennzoil Platinum Euro SAE 5W-40 Full Synthetic motor oil DOES?
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It states: “All Pennzoil Platinum Euro motor oils offer complete protection and performance for European vehicles.”
Is there some reason the 0W-40 does not meet Porsche requirements but the 0W-40 does meet them?
My MY 2016 Porsche Macan Turbo was factory filled with Mobil1 0W-40.
Hard to believe Pennzoil Platinum Euro SAE 0W-40 is not appropriate for my Porsche.
Finally received a reply today:
"Thank you for patiently waiting. Upon further checking, Pennzoil Platinum Euro 0W-40 and 5W-40 switched formulations to be in line with the API SN PLUS/SP specifications. The 0W-40 SP version of this product (001H0962) has never had this approval. We did not seek the approval on the new 0W-40 grades, only for the 5W-40 grades.
Pennzoil Platinum Euro 5W-40 can be used where Porsche A40 0W-40 is recommended.
Hope this helps."
So, I will go back to Pennzoil 5w-40 next oil change or
Mobil 1 FS European Car Formula Full Synthetic Motor Oil 0W-40, which DOES have the Porsche A40 listed.