I have many different 0W-40 and 5W-40 oils on my shelf with 1,000+ PPM of Phopshorus that are API SP certified. xW-40 oils have always been non-ILSAC from what I understand. No Phosphorus limits apply. This does not change in API SQ.If it has higher ZDDP it won't be API SQ and ILSAC GF-7. Then people will say they won't buy it because it doesn't cover those specs. As people say now that is a drawback that is not Dexos1Gen3 approved.
If it come up as 5W-40 or 0W-40, but is not API SQ and ILSAC GF-7 - are you gonna buy it?
https://www.infineuminsight.com/media/ud2lat5v/infineum_api_2025_9-11-25.pdf
Valvoline could make a 0W-40 RP flavor with 1,400 PPM Phosphorus and 1,400 PPM Zinc if they wanted to and still get it API SQ certified.
Not that it matters. Of course I would buy it, regardless of the API donut. API has become irrelevant to me. The oils best suited for my cars do not carry any API certifications (e.g. Valvoline VR1 or Mobil 1 Classic).