Pneutech S-46 Replacement Oil

Alpha Syn 46 is a fully synthetic hydrocarbon ISO 46 air compressor oil, designed to be a replacement for Pneutech S-46 air compressor oil. It is engineered for rotary screw compressors requiring extended service intervals and superior equipment protection. This high-performance synthetic compressor lubricant delivers up to 8,000 hours of service life, making it a reliable alternative to many OEM PAO-based air compressor oils used in industrial applications.

As one of the most widely used viscosities in industrial compressor systems, this ISO 46 synthetic air compressor oil supports long operating intervals while helping reduce overall maintenance costs. Its advanced anti-wear additive package protects critical compressor components, promoting long-term equipment reliability and consistent operating efficiency.

Rated for up to 8,000 hours of service life at temperatures up to 200°F, Alpha Syn 46 delivers exceptional oxidation stability, strong water separation, and excellent resistance to foaming, ensuring stable lubrication even in demanding industrial environments. 

Designed for use in rotary screw air compressors and compatible with select reciprocating compressor systems requiring ISO 46 viscosity, Alpha Syn 46 is a versatile solution for facilities focused on performance, uptime, and cost control. 

Key Benefits

• Up to 8,000 hours of service life at 200°F
• Fully synthetic hydrocarbon (SH) ISO 46 formulation
• High-performance alternative to Pneutech S-46
• Designed for rotary screw air compressors
• Excellent oxidation stability for extended maintenance intervals
• Strong anti-wear protection for critical compressor components
• Superior water separation and foam resistance
• Helps reduce operating costs and downtime
• Compatible with both rotary screw and select reciprocating compressor systems

Compatible With (For Identification & Compatibility Reference Only)

Alpha Syn 46 is formulated for compressor systems operating with ISO 46 synthetic air compressor lubricants, including systems commonly using:

• Pneutech S-46

Choosing the correct compressor oil is important for performance and equipment longevity. If you need help confirming compatibility, you can search our oil cross reference tool, browse the compressor lubricant guide, or use the equivalent chart to find suitable alternatives for your system.