The oil that some of us are recommending to him would do much better in that KIA.Your kia has caked valves and burns oil because those 4 cylinders in them are sub-par powerplants overall and known to be extremely hard on oil. They are notorious for the exact issues you mentioned regardless of what oil is used. I am not personally knowledgable enough on oils for your application regarding your infiniti but I keep seeing you refer to your kia motor in this thread and I think you are putting too much weight on those results in regards to your thinking. Also, the users giving you advice in this thread are among the most knowledgable on here.
I am actually not sure why he came here to ask questions if he knows the answer.