SEAOIL MARINE OIL SAE 40 SERIES are premium trunk piston diesel engine oils formulated using high-quality base oils and advanced marine additive technology designed to provide reliable protection for medium-speed diesel engines operating on distillate and residual fuel oils.

The formulations provide excellent detergency, dispersancy, oxidation stability, alkalinity retention, and water separation characteristics necessary to maintain engine cleanliness and minimize wear under severe operating conditions. They are engineered to support extended engine reliability and efficient operation in marine propulsion and stationary power generation applications.

The series is available in multiple TBN levels to support varying fuel sulfur content, engine operating severity, and OEM lubrication requirements.

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