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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• API CF

• 200 Liters

• Medium-speed trunk piston diesel engines used in marine propulsion and auxiliary systems
• Stationary power generation diesel engines operating under continuous-duty conditions
• Diesel engines operating on distillate and residual fuel oils
• Applications requiring varying TBN reserve levels based on fuel sulfur content and operating severity
• Marine engine systems requiring SAE 40 trunk piston diesel engine oils

• Reliable Engine Wear Protection. Provides dependable protection for pistons, liners, bearings, and valve train components.
• Good Oxidation Stability. Maintains lubricant durability during prolonged high-temperature operation.
• Superior Alkalinity Retention. Supports neutralization of acidic combustion by-products and sustained engine cleanliness.
• Excellent Water Separation Characteristics. Supports rapid water shedding and efficient centrifuge cleaning capability.
• Deposit and Sludge Control. Helps minimize deposit formation and maintain cleaner engine operation.