got 6 qts given to me by a friend. Which vehicles can i run this in besides Euro cars, none of which i own. A woman who i do oil changes for has a 2012 Kia Optima, non turbo, 2.4 direct injection. Ive been running Quaker State Ultimate Durability 5W30 at 4k ocis, would it be ok to run this oil or would it possibly hurt the warranty? How would it hold up to fuel dilution, being a DI engine?