CASTROL EDGE IS ENGINEERED WITH TITANIUM FLUID STRENGTH TECHNOLOGYTM WHICH TAKES SYNTHETIC OILS TO THE NEXT LEVEL; IT CONTAINS A PATENT PENDING LIQUID TITANIUM MOLECULE THAT INCREASES MOTOR OIL STRENGTH. THIS DYNAMIC SYSTEM OF FLUID STRENGTH TECHNOLOGY CONTINUOUSLY RESPONDS TO YOUR ENGINE"S EVERY NEED UNDER ALL CONDITIONS TO DELIVER MAXIMUM PERFORMANCE.Castrol"s strongest motor oil delivers: Power: Maintained maximum horsepower 25% longer than EDGE with SYNTEC Power Technology [1]Protection: Strongest oxidation control and wear protectionPerformance: Lowest volatility formulation maintains maximum performance during the entire drain intervalCastrol EDGE with Titanium uses an advanced proprietary formula that provides performance and protection in extreme conditions such as towing, hauling, high and low temperatures, rapid acceleration and stop-and-go traffic.