That's the first thing I looked up about Zic before using it.
Do you know who's still not in the API list but continue to use the API Service Designations? Pertua.
pertua is literally snake oil
check this out the SN version isn't on API's list but it says on the label "meets of requirements of API SN". deceptive word play technically doesn't claim to be api certified, it just meets the requirements, whatever that means