Provides wear control for critical engine parts while allowing the engine components to seat, resulting in maximum engine performance and life. Formulated with premium base stocks and a state-of-the-art additive system. Suitable for use in BOTH diesel and gasoline fueled engines. Size - 1 Quart (4 Pack) PennGrade 1 Break-In Oil SAE 30 provides wear control for critical engine parts while allowing the engine components to seat, resulting in maximum engine performance and life. It is formulated with premium base stocks and a state-of-the-art additive system. Available in SAE 30. PennGrade 1 Break-In Oil SAE 30 is suitable for use in BOTH diesel and gasoline fueled engines. This makes PennGrade 1 Break-In Oil SAE 30 the optimum choice for professional engine builders.