Mobil DTE 25 Ultra
Mobil DTE 25 Ultra is a high-performance hydraulic oil engineered to provide reliable protection and long service life in modern hydraulic systems operating under severe conditions. Formulated with high-quality base oils and a zinc-based anti-wear additive system, it is suitable for high-pressure, high-output pumps as well as sensitive components such as servo-valves and precision-controlled machinery.
One of the key advantages of Mobil DTE 25 Ultra is its exceptional oxidation and thermal stability. The formulation resists oil degradation at elevated temperatures, helping reduce sludge and deposit formation. This supports cleaner systems, improved reliability and extended oil drain intervals compared to conventional hydraulic oils.
Mobil DTE 25 Ultra also provides excellent anti-wear performance. It meets or exceeds major pump manufacturer requirements, delivering reliable protection for pumps, gears and bearings. This helps extend component life and reduce maintenance costs in demanding industrial environments.
Another important benefit of Mobil DTE 25 Ultra is its strong system cleanliness performance. The oil helps minimise deposit build-up in critical components such as servo and proportional valves, ensuring smooth operation and reducing the risk of system malfunction. This contributes to improved efficiency and reduced downtime.
Mobil DTE 25 Ultra also offers excellent demulsibility and corrosion protection. It effectively separates water, helping protect hydraulic components in systems where moisture contamination may occur. In addition, it provides reliable protection across a wide range of metal surfaces, ensuring long-term durability.
Mobil DTE 25 Ultra is recommended for use in industrial and mobile hydraulic systems operating under high pressure and severe conditions, particularly where cleanliness, wear protection and long oil life are critical. It is suitable for systems containing gears and bearings and equipment with mixed metallurgy components. The product meets or exceeds key industry standards including DIN 51524-2 (HLP) and ISO 11158 (HM).
Physical characteristics include a kinematic viscosity of approximately 46.2 mm²/s at 40°C and 7.1 mm²/s at 100°C, with a viscosity index of around 110. Mobil DTE 25 Ultra has a density of approximately 0.8667 kg/l at 15.6°C, a flash point of approximately 238°C and a pour point of approximately −33°C, supporting reliable performance across a wide range of operating conditions.
