SEAOIL MARINE OIL TBN 50 & 70 SERIES are high-performance marine cylinder and crankcase lubricants formulated using highly refined base oils and advanced multifunctional additive technology designed to provide reliable protection for medium-speed diesel engines operating on residual and high-sulfur fuel oils.

The formulations provide a very high alkalinity reserve for rapid neutralization of acidic combustion by-products while delivering excellent oxidation stability, detergency, dispersancy, and wear protection under severe operating conditions. They are engineered to minimize deposit formation, reduce liner and piston ring wear, and maintain engine cleanliness during continuous heavy-fuel operation.

SEAOIL MARINE OIL TBN 50 & 70 SERIES are suitable for highly rated medium-speed trunk piston diesel engines used in marine propulsion and stationary power generation applications operating on residual fuels with sulfur content levels up to 3.5%.

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• API CF

• 200 Liters

• Medium-speed trunk piston diesel engines operating on residual and high-sulfur fuel oils
• Marine propulsion and auxiliary diesel engine systems
• Stationary power generation diesel engines operating under severe-duty conditions
• Engines requiring high TBN lubricants for acid neutralization and corrosion protection
• Applications requiring SAE 30, SAE 40, or SAE 50 marine engine oils with TBN 50 or TBN 70 reserve levels

• High Alkalinity Reserve. Provides rapid neutralization of acidic combustion products generated from high-sulfur fuel operation.
• Excellent Wear Protection. Helps reduce liner, piston ring, and bearing wear under severe operating conditions.
• Good Oxidation Stability. Maintains lubricant durability and minimizes degradation during prolonged high-temperature service.
• Engine Cleanliness Control. Helps minimize deposit formation and maintain cleaner engine operation.
• Rust and Corrosion Protection. Protects internal engine components against corrosive wear and moisture contamination.