Mobil Rarus SHC™ 1020 Series air compressor oils

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Product Information
Mobil Rarus SHC™ 1020 performance profile
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Technical resources
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Features and Benefits

The use of the Mobil Rarus SHC 1020 Series oils can result in cleaner compressors and lower deposits compared to conventional mineral oils, resulting in longer running periods between maintenance intervals. Their excellent oxidation and thermal stability safely allow extended life capability while controlling sludge and deposit formation. They possess outstanding anti-wear and corrosion protection, which enhances equipment life and performance.



Advantages and Potential Benefits

High Performance Synthetic Base Stocks Wide temperature range capability
Significant performance capabilities relative to mineral oils
Improved safety
Extended service life
Outstanding Oxidation
and Thermal Stability
Reduced coking deposits
Longer oil life
Improved filter life
Lower maintenance costs
High Load-carrying ability Reduced wear of bearings and gears
Outstanding Oxidation Stability

Helps provide long oil and equipment life, which can extend filter life

Excellent Water Separability Less carryover to downstream equipment
Reduced sludge formation in crankcases and discharge lines
Reduced blockage of coalescers, inter- and after-coolers
Less potential for emulsion formation
Effective Rust and Corrosion Protection Improved protection of internal compressor components
Specifications and Approvals
Mobil Delvac 1 ESP meets or Exceeds the requirements of:
API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4 X
Caterpillar ECF-3 X
Cummins CES 20081 X
Mobil Delvac 1 ESP is approved by the following OEMs:
Detroit Fluids Specification 93K218 X
Mack EO-O Premium Plus X
MAN M 3575 X
MB-Approval 228.31 X
MTU Oil Category 2.1 X
Volvo VDS-4 X
The Mobil Rarus SHC 1020 Series oils are primarily intended for rotary screw and vane compressors. They are particularly effective for continuous high temperature operation with discharge temperatures up to 200º C. Rarus SHC 1020 Series oils are recommended for units with a history of excess oil degradation, poor valve performance or deposit formation. They are compatible with all metals used in compressor construction and with conventional mineral oil-based air compressor oils but admixture with other oils may detract from the total performance capability.

Mobil Rarus SHC 1020 Series oils are not recommended for air compressors used in breathing air applications and should not be used in compressors where the discharge temperature is higher than the product flash point.

The following types of compressor applications have shown excellent performance with the Mobil Rarus SHC 1020 Series oils:
  • Primarily recommended for rotary screw and vane air compressor
  • Very effective in screw type compressors with oil injection cooling
  • Units operating under severe conditions
  • Multistage units with a history of excessive oil degradation from mineral oil-based products
  • Compressor systems with critical gears and bearings
  • Compressors used in stationary and mobile applications
Typical Properties
Mobil Rarus SHC 1020 Series
ISO Viscosity Grade 32 46 68
Flash Point, ºC, ASTM D 92 245 246 246
Specific Gravity 15º C/15º C, ASTM D 1298 0.846 0.849 0.856
Viscosity, ASTM D 445
cSt @ 40º C 31.5 44 66.6
cSt @ 100º C 5.7 7.2 10.1
Viscosity Index, ASTM D 2270 , min 127 131 136
Copper Strip Corrosion, ASTM D130,24 h @ 100º C 1B 2A 1B
Rust Characteristics Proc A, ASTM D 665 Pass Pass Pass
Pour Point, ASTM D 97, ºC, max -48 -45 -45


Product features
  • Extended Life
  • Enhanced Wear Protection
Industry Sectors
  • inland and coastal
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