PennGrade Reliant Heavy-Duty Engine Oil

Advances in diesel engine technology have escalated significantly from what existed a decade ago. Today's engines are substantially more powerful and efficient than once imagined. Changes made to achieve this have created more severe operating conditions that place new levels and types of stress on the engine oil. In response to this, the lubricant industry has adopted new performance standards, designated as API CK-4.

PennGrade Reliant Heavy-Duty engine oil is a new generation of diesel engine protection that meets these new standards. It delivers increased levels of engine protection and oil durability to meet the needs of new engine designs while simultaneously providing a higher degree of protection for older model engines. Trust your diesel to dependable, reliable Reliant Heavy-Duty engine oil.

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