Mobil Rarus 827 Replacement Oil

Delta Syn 100 is ISO 100 Diester Synthetic Air Compressor Oil designed as a replacement for Mobil Rarus 827. It is a premium diester synthetic ISO 100 air compressor oil engineered for extended service life, superior deposit control, and reliable performance in demanding industrial compressor systems. Supplied in a 55-gallon drum, this high-performance lubricant is ideal for large-scale facilities implementing bulk oil management and centralized lubrication programs.

Formulated with advanced diester-based synthetic technology, Delta Syn 100 provides enhanced oxidation stability and internal cleaning performance compared to many conventional or hydrocarbon-based compressor lubricants.

High-Load ISO 100 Synthetic Compressor Oil

With ISO 100 viscosity, this synthetic compressor lubricant is designed for higher-load, higher-pressure, and elevated-temperature compressor applications where increased film strength and durability are required.

Rated for up to 8,000 hours of service life at temperatures up to 200°F, this Mobil Rarus 827 equivalent supports extended maintenance intervals while helping protect critical compressor components in continuous-duty industrial environments.

Its advanced additive system helps control:

• Carbon and varnish deposits
• Internal contamination buildup
• Foam formation under load
• Moisture-related lubrication breakdown

By promoting internal cleanliness and reducing deposit formation, this ISO 100 diester compressor oil helps minimize downtime, improve operational efficiency, and lower long-term maintenance costs.

Key Benefits

• Up to 8,000-hour service life at 200°F
• Diester synthetic formulation for enhanced cleaning performance
• ISO 100 viscosity for higher-load compressor systems
• Excellent oxidation stability
• Strong resistance to carbon and varnish buildup
• Superior water separation and foam resistance
• Designed for rotary screw, rotary vane, and reciprocating compressors
• Ideal for 55-gallon bulk industrial use
• Supports centralized lubricant management programs
• Helps reduce downtime and protect long-term equipment reliability

Applications

Recommended for use in:

• Large-scale industrial manufacturing facilities
• Continuous-duty compressor operations
• High-pressure reciprocating compressor systems
• Rotary screw and rotary vane compressors requiring ISO 100 synthetic oil
• Facilities implementing bulk lubricant storage systems

Suitable for compressor systems operating with ISO 100 lubricants similar to:

• Mobil Rarus 827

AirCompressors.com is an independent supplier and is not affiliated with, authorized by, or endorsed by any original equipment manufacturer referenced above. OEM names, trademarks, and part numbers are the property of their respective owners and are used strictly for identification and compatibility reference purposes only. 

Why Choose AirCompressor.com Performance Lubricants?

AirCompressor.com house-brand lubricants are engineered to deliver industrial-grade protection with competitive pricing and transparent specifications. We maintain strict formulation standards to provide:

• Consistent quality
• Reliable bulk availability
• Extended maintenance intervals
• Strong long-term value

Delta Syn 100 is a performance-driven ISO 100 diester compressor lubricant built specifically for high-demand industrial compressor systems.

If you’re unsure whether this is the right replacement oil, you can quickly verify compatibility using our
compressor lubricant cross reference tool.
For additional guidance, explore our
cross reference guide
or review the
oil equivalent chart
to compare compatible options.