Eni OSO AS
ENI OSO AS – Ashless High Quality Hydraulic Oil
ENI OSO AS is a line of ashless high quality hydraulic oils specially developed for use in all types of hydraulic systems and equipment. These oils are formulated from selected paraffinic base stocks treated with anti-rust, anti-oxidant and anti-wear additives (ISO-L-HM classification). The oils are available in a wide range of viscosities to suit practical requirements.
ENI OSO AS oils are designed for energy transmission in hydraulic systems while providing strong lubricating films capable of withstanding heavy loads between moving components. They offer excellent oxidation resistance, high viscosity stability, and reduced sludge formation, ensuring long service life and reliable system performance.
Key Features & Performance Benefits
- Excellent anti-wear properties for extended equipment life
- High oxidation resistance reduces sludge and deposit formation
- High viscosity index ensures stable flow across temperature changes
- Low pour point allows easy start-up at low temperatures
- Strong anti-rust and anti-corrosion protection for hydraulic circuits
- Excellent de-mulsibility preventing stable oil-water emulsions
- Outstanding anti-foam and air release characteristics
- Good filterability suitable for modern hydraulic systems
Typical Technical Characteristics
| Property | ENI OSO AS 46 | ENI OSO AS 68 |
|---|---|---|
| Viscosity at 40°C (mm²/s) | 46.98 | 67.42 |
| Viscosity at 100°C (mm²/s) | 7.63 | 9.49 |
| Viscosity Index | 129 | 120 |
| Flash Point COC (°C) | 224 | 232 |
| Pour Point (°C) | -24 | -24 |
| Density at 29.5°C (gm/cc) | 0.839 | 0.849 |
Applications
ENI OSO AS fluids are recommended for use in hydrodynamic power transmission machinery, hydraulic controls, and hydrostatic systems widely used in transport, construction, mining, chemical and metallurgical industries, machine tools, marine and aviation equipment. They are suitable for pumps with steel-on-steel and steel-on-bronze contact and also for bearings and reduction units where anti-wear characteristics are required.
Specifications
ENI OSO AS products meet the requirements of:
ISO-L-HM
DIN 51524 Part 2 – HLP category
AFNOR NF E 48603 HM
DENISON HF 2
ENI OSO AS 46
Applications
