Castrol 06518 EDGE 0W-40 A3/B4 Advanced Full Synthetic Motor Oil, 1 Quart, 6 Pack Advanced premium full synthetic motor oil to offer strength under extreme pressure Titanium strong for maximum engine performance Reduces metal-to-metal contact across a range of different driving speeds Protects the engine for the entire drain interval even under extreme pressure Decreases engine deposit formation to help maximize engine response Best full synthetic money can buy API SN/CF, ACEA A3/B3, A3/B4, Meets Ford WSS-M2C937-A, BMW LL-01, Mercedes Benz 229.5 and 229.3, Porsche A40, VW 505 00 and 502 01 Castrol recommends the use of Bosch oil filters