Fully Synthetic 0w-20, 5w-20 or lastly 5w-30 (You can choose between any of these 03 but do not go above 5w-30 grade!) from any reputed brand, meeting latest API SN / SN Plus (preferably with RC), and / or ILSAC GF-5 criteria. Just ensure that the oil which you are buying is 100% genuine and original.