Mobil Rarus 827 Replacement Oil

Delta Syn 100 ISO 100 Diester Synthetic Air Compressor Oil is a premium diester synthetic ISO 100 air compressor oil designed to replace Mobil Rarus 827 air compressor oil. It is engineered to deliver extended service life, enhanced internal cleanliness, and reliable performance in demanding industrial compressor systems. Supplied in a convenient 5-liter container, this high-performance lubricant is ideal for maintenance programs requiring precision volume control.

Formulated using advanced diester-based synthetic technology, Delta Syn 100 provides superior oxidation resistance, carbon control, and deposit management compared to many conventional and hydrocarbon-based compressor oils.

High-Performance ISO 100 Compressor Oil

With a viscosity grade of ISO 100, this synthetic compressor lubricant is designed for applications operating under higher load, elevated temperature, or increased pressure conditions where enhanced film strength is required.

Rated for up to 8,000 hours of service life at temperatures up to 200°F, this Mobil Rarus 827 replacement helps extend maintenance intervals while protecting critical compressor components.

Its advanced additive package supports:

• Carbon and varnish deposit control
• Improved internal cleanliness
• Excellent water separation
• Strong foam resistance

By minimizing deposit formation, Delta Syn 100 can reduce the need for separate cleaning treatments while supporting smoother compressor operation and long-term equipment reliability.

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 applications
• Helps prevent carbon and varnish buildup
• Advanced additive package promotes internal cleanliness
• Excellent oxidation stability
• Superior water separation and foam resistance
• Designed for rotary screw, rotary vane, and reciprocating compressors
• Helps reduce maintenance costs and extend equipment life

Applications

Ideal for use in:

• Rotary screw air compressors requiring ISO 100 synthetic oil
• Rotary vane compressor systems
• Reciprocating compressors operating under higher pressure conditions
• Industrial manufacturing facilities
• Continuous-duty production environments

Suitable for compressor systems using ISO 100 lubricants similar to:

• Mobil Rarus 827

AirCompressors.com is an independent supplier of aftermarket products and is not affiliated with, authorized by, or endorsed by any original equipment manufacturer referenced above. OEM names are used strictly for identification and compatibility reference purposes. 

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 control formulation standards to ensure:

• Consistent quality
• Reliable availability
• Extended maintenance intervals
• Strong value positioning

Delta Syn 100 is a performance-driven ISO 100 diester compressor lubricant built specifically for demanding 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.