Key Features & Benefits
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System Efficiency
- Reduces ''light-end'' oil carryover, preventing oil thickening and minimizing evaporator surface coating.
- Ensures consistent performance and optimized energy efficiency.
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Extended Maintenance Intervals
- Excellent high-temperature and oxidation stability.
- Minimizes deposit and sludge formation, extending oil drain intervals compared to conventional mineral oils.
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Broad Temperature Range
- Performs reliably under high compressor discharge temperatures or down to evaporation temperatures of -30°C.
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Refrigerant Compatibility
- Fully compatible with ammonia (R717) and hydrocarbon refrigerants like propane (R290).
- Not suitable for CFC, HCFC, or HFC refrigerants such as R12, R22, or R134a.
Main Applications
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Refrigerator Compressors:
Suitable for open, semi-open, and hermetic compressors in domestic, commercial, and industrial systems. -
Rotary and Reciprocating Compressors:
Engineered for use in both types of compressors.
Typical Physical Properties
Property | Method | Value |
---|---|---|
ISO Viscosity Grade | ISO 3448 | 68 |
Kinematic Viscosity @ 40°C | ASTM D445 | 68 mm²/s |
Kinematic Viscosity @ 100°C | ASTM D445 | 9 mm²/s |
Flash Point (COC) | ISO 2592 | 232°C |
Pour Point | ISO 3016 | -39°C |
Density @ 15°C | ISO 12185 | 862 kg/m³ |

Environmental Considerations
- Dispose of used oil at authorized collection points.
- Avoid discharging into drains, soil, or water.
Why Choose Shell Refrigeration Oil S2 FR-A 68?
With a proven track record of performance and reliability, Shell Refrigeration Oil S2 FR-A 68 is the go-to solution for ammonia-based refrigeration systems. Its advanced formulation delivers superior protection, extended service life, and improved system efficiency.
Contact Us
Discover how Shell Refrigeration Oil S2 FR-A 68 can optimize your refrigeration system. Contact us today for expert advice and to place your order.