Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart Dramatically reduce engine wear Leave critical engine parts 4X smoother Add a layer of protection during warm-up and beyond Cling to critical engine parts when the oil drains down API SN; ILSAC GF-5; GM dexos1; Meets Ford WSS-M2C929-A; Meets Ford WSS-M2C946-A; Meets the performance of GM 6094M Castrol recommends the use of Bosch oil filters