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.