CASTROL Egde Titanium advanced full synthetic engine oil is build-up with titanium technology that outstanding protection ensuring proper lubricantion in very part of the engine. CASTROL egde advanced full synthetic engine oil engineered with fluid titanium technology that physically changes the way the oil behaves under pressure and high temperatures. provides exceptional protection against wear,sludge,harmful deposits and keep your engine running like new. Meets and exceeds the requirements of APL service SN, ILASAC GF-5 .