3X stronger against viscosity breakdown than leading full synthetic, based on Kurt Orbahn test in 5W-30 grade

10X better high temperature performance, as measured in Sequence IIIH engine test vs. API SP test limit

6X better wear protection, Protection for 10,000 miles between oil changes

1.4X better sludge protection, as measured in Sequence VH engine test vs. API SP test limit

Meets ILSAC GF-6 to prevent low speed pre ignition (LSPI) and timing chain wear protection

Castrol EDGE Strength for Maximum Performance. Engine oils need to be able to constantly respond to the ever-changing environments in your engine. Every second of the drive your engine oil needs to be able to react to the needs of different metal-to-metal contact points in your engine each with different demands, pressures and temperatures. Castrol EDGE provides the highest level of protection for critical engine parts helping your car to perform at its maximum. Castrol EDGE is an advanced full synthetic motor oil with a unique and proprietary formula that reduces volatility and provides superior protection for critical engine parts helping your vehicle operate efficiently at power.