Supertech dex 6 is an every day value. Just as good as any name brand. Pretty much all the same if it's licensed using the name, some small differences in base oils but all semi synthetic + iirc.
2002 Buick Century 113k - QS Defy 5w30/Fram TG 3387A
1998 Nissan Altima 334k - Valvoline conventional + filter