My personal choice? Quaker State Advanced Durability 0W-30. It would be a fine substitute to the Delo 0W-30 that I'll likely have a very hard time getting my hands on. It seems feasible, as Conoco Phillips has produced some synthetic blend 0W-20's, and there seems to be debate on "conventionals" being synthetic blends. Oh, and allow it to be purchased as cheap as the other grades of QSGB, such as 2.70/qt. on clearance at K Mart. What would you like to see?