Off the shelf, Mobil 1 ESP 0w-20, 0w-30, and 0w-40 along with Pennzoil Ultra Platinum 0w-20 and 5w-30. If there's a shortage then I would use Castrol EDGE Extended Performance gold bottle along with any other EP oil by Mobil and Valvoline. After that Quaker State Ultimate Durability. If all...