Phillips 66® Syncon Refrigeration Oil is a premium quality, synthetic lubricant developed for use in rotary screw compressors in refrigeration systems using ammonia, methyl chloride, or carbon dioxide. It has better oxidation resistance than conventional paraffinic and naphthenic-based refrigeration compressor oils, resulting in less buildup of varnish and sludge deposits and longer service life. It is registered by NSF International as an H1 lubricant for use where incidental food contact may occur.

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Features & Benefits

  • Outstanding low-temperature fluidity
  • Outstanding oxidation resistance and thermal stability at high temperatures
  • Excellent deposit control
  • Low volatility for lower oil consumption and less makeup oil
  • Protects against rust and corrosion
  • Extended service intervals compared to conventional mineral oil-based refrigeration oils


  • Rotary screw refrigeration compressors using ammonia, methyl chloride or carbon dioxide and operating under severe-service conditions
  • Ammonia and carbon dioxide manufacturing plants
  • Cold storage warehouses and distribution facilities
  • Chemical plants
  • Ice plants

Technical Details

  • ISO Grade: 68
  • Licenses & Approvals

    Syncon Refrigeration Oil meets the requirements of the following industry specifications:#NSF International H1 and former 1998 USDA H1 guidelines for incidental food contact (Registration No. 147856)

    Syncon Refrigeration Oil is recommended for use in ammonia refrigeration compressors where the OEM specifies:#Copeland Refrigeration Oil#Frick Oil No. 2A, 3, 7, 9#Vilter Refrigeration Oil#York Oil “C”

    Additional Details

    ISO Grade 68
    Specific Gravity @ 60°F 0.832
    Density, lbs/gal @ 60°F 6.93
    Color, ASTM D1500 0.5
    Flash Point (COC), °C (°F) 243 (469)
    Pour Point, °C (°F) -54 (-65)
    cSt @ 40°C 70
    cSt @ 100°C 10
    SUS @ 100°F 360
    SUS @ 210°F 60
    Viscosity Index 126
    Acid Number, ASTM D974, mg KOH/g 0.17
    Copper Corrosion, ASTM D130, 48 hrs @ 80°C 1a
    Demulsibility, ASTM D1401, minutes to pass 10
    Foam Test, ASTM D892, Seq. I, mL 0/0
    Four-Ball Wear Test, ASTM D4172, Scar Diameter, mm 0.79
    Rust Test, ASTM D665 A&B Pass
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