PennGrade Select is a premium full synthetic gasoline motor oil formulated to meet or exceed the requirements of today's toughest standards. PennGrade Select is made with a blend of high-performance synthetic base oils that are enhanced with a synergistic additive system. PennGrade Select is formulated with the proper balance of detergent systems, antioxidants and dispersants to minimize harmful deposits and sludge, ensuring proper engine performance throughout the life of the oil. PennGrade Select has improved compatibility with ethanol containing fuels and offers exceptional protection for catalytic emission systems. PennGrade Select protects against timing chain wear and Low Speed Pre-Ignition (LSPI) found in gasoline direct injection engines