Servo Ultra 50 is a premium heavy-duty diesel engine oil formulated with high-viscosity index base oils and advanced detergent–dispersant and antioxidant additives to deliver exceptional protection in high-performance diesel engines. It is designed to meet the rigorous demands of modern supercharged and turbocharged diesel engines operating under extreme temperature and load conditions. The oil’s superior formulation ensures excellent oxidation stability, outstanding cleanliness, and long-lasting lubrication even during prolonged operation in harsh industrial or off-highway environments. Developed for engines using high-sulfur fuels, Servo Ultra 50 effectively neutralizes acidic by-products of combustion, minimizing deposit formation, corrosion, and wear. Its robust detergent-dispersant system maintains piston and ring cleanliness, preventing sludge and soot accumulation that can reduce efficiency. The high viscosity grade ensures a strong oil film even under heavy mechanical stress, safeguarding vital components like bearings, liners, and gears from frictional damage and wear. Servo Ultra 50 is ideal for use in heavy-duty diesel vehicles, off-highway construction machinery, transmission systems of Caterpillar equipment, and large generating sets operating in severe load and temperature conditions. It is also recommended for hydraulic systems that call for Detroit Diesel Allison Type C2 fluid. The oil’s stable performance across wide temperature variations ensures reliable operation, extended engine life, and reduced maintenance costs. With a kinematic viscosity of 18–20 cSt at 100°C, a flash point of 230°C, and a pour point of -6°C, Servo Ultra 50 offers excellent viscosity retention, superior thermal resistance, and dependable lubrication in hot climates or continuous heavy-duty operations. Its TBN of 9.5–11.5 mg KOH/g provides strong protection against acid corrosion, ensuring long service intervals and optimum engine health. Complying with API CD, US MIL-L-45199B, and Caterpillar Series 3 specifications, Servo Ultra 50 is approved by major OEMs such as Bharat Earth Movers Ltd. and Escorts Ltd., making it a trusted choice for industries requiring durable, high-performance diesel engine lubrication.
Caterpillar series 3
E-DL 2 of IS : 13656-2002
| SAE GRADE | 50 |
|---|---|
| Kinematic Viscosity cSt @ 100°C | 18 – 20 |
| TBN mg KOH/gm | 9.5 – 11.5 |
| Flash point (COC), °C Min. | 230 |
| Pour Point, °C Max. | (-) 6 |
| Viscosity Index, Min. | 90 |