Castrol 5-Qt. 0W-20 Full Synthetic Motor Oil

5-Quart Castrol GTX 0W-20 Full Synthetic Oil helps extend engine life with superior wear protection on critical engine parts (6X better wear protection). Superior sludge cleaning and protection against new formation (1.3X better sludge protection). Full synthetic formula provides thermal and oxidation stability. Superior level of protection against viscosity breakdown.