DCB3030 Marine Medium Speed Trunk Piston Diesel Engine Oil Water Separating Lubricant

DCB3030 Marine Medium Speed Trunk Piston Diesel Engine Oil Water Separating Lubricant

Kunlun DCB3030 Marine Medium Speed Trunk Piston Diesel Engine Oil

Kunlun DCB3030 marine medium speed trunk piston diesel engine oil is produced from lubricating oil distillates. After dewaxing and deep refining, it is blended with a proper amount of detergents, dispersants, antioxidant and anti-corrosion additives, water separating additives and other multifunctional additives. Bench tests and real ship tests show that DCB3030 has good detergency and dispersancy, oxidation and corrosion resistance, water separating performance, acid neutralization speed, base number retention and oxidation stability, reaching the quality level of similar foreign products.

Typical Data

Scope of Application

DCB3030 marine medium speed trunk piston diesel engine oil is suitable for the lubrication of the cylinder and crankcase of marine diesel engines burning heavy fuel with a sulfur content below 3.0%, including main engines and auxiliary engines.

Performance Features

• Excellent detergency and dispersancy: protects the key parts of the engine and prevents carbon deposits and heavy fuel contamination;
• Excellent thermal oxidation stability: effectively prevents the formation of high temperature deposits and gives longer oil life;
• Excellent oxidation and corrosion resistance and acid neutralization speed: the higher base number effectively neutralizes the strong acids produced by burning high sulfur fuel, reducing corrosion and wear of the cylinder and piston;
• Excellent base number retention: effectively prevents the base number drop caused by oxidation and provides full protection over long drain intervals;
• Excellent anti-wear performance: sufficient oil film strength under high temperature and high pressure, reducing friction and wear;
• Excellent water separating performance: quickly separates from water and other contaminants in the separator.

Real Ship and Mixing Tests

• The DCB series marine medium speed trunk piston diesel engine oil has passed a 3000 hour real ship test on the main engine of a leading marine engine manufacturer's medium speed engine.
• Pistons, piston rings and exhaust ports are clean with little carbon deposit; the finish of the cylinder liner and piston rings is good; and the wear of the cylinder liner, piston rings and cam system is low, reaching the quality level of similar foreign products. Water resistance is good and the base number drop rate is stable. It is suitable for matching high power diesel engines burning high sulfur fuel.
• The DCB series mixes with various similar foreign oils without precipitation, suspended matter or layering, and it can be mixed in any proportion.

Selection, Storage and Handling

• Select the correct quality grade according to the engine maker oil regulations;
• Keep the storage tank and the oil circuit clean; keep the oil free of water, moisture and mechanical impurities;
• Do not mix the oil with other types of oil that are not qualified for the same system.

Q&A on DCB3030 Marine Trunk Piston Engine Oil

Q: What fuel is DCB3030 suitable for?
A: It is suitable for marine main and auxiliary diesel engines burning heavy fuel with a sulfur content below 3.0%, and it lubricates both the cylinder and the crankcase.

Q: How does the higher base number help the engine?
A: The higher base number neutralizes the strong acids produced by burning high sulfur fuel, which lowers the corrosion and wear of the cylinder and piston and keeps the engine clean.

Q: How does the water separating performance work?
A: Its water separating additive system lets the oil separate quickly from water and other contaminants in the separator, which keeps the oil clean and protects the engine.

Q: What are the main typical values of DCB3030?
A: Typical values include a kinematic viscosity of 11.5 mm2/s at 100 C, a total base number of not less than 28 mgKOH/g, a viscosity index of not less than 85, a flash point of not less than 220 C (open cup) and a pour point of not higher than -15 C.

Q: Can DCB3030 be mixed with other marine engine oils?
A: Yes. It can be mixed with various similar foreign oils in any proportion without precipitation, suspended matter or layering.

With consistent quality control, carefully selected base oils and additives, and proven real ship performance, Kunlun DCB3030 marine medium speed trunk piston diesel engine oil helps ship operators protect cylinders and crankcases while burning high sulfur fuel. Contact us for a quotation and application guidance for DCB3030.