SH-46 Synthetic Air Compressor Oils

SH-46 identifies an air compressor lubricant category centred on ISO viscosity grade 46. Products in this range use different chemistries, including full-synthetic, partial-synthetic, PAG, PAO, diester, and food-grade formulations. The correct choice depends on compressor type, OEM cross-reference, operating severity, food-contact requirements, and compatibility with the lubricant already in the system.

The product range includes lubricants for rotary screw compressors, while selected formulations are also listed for reciprocating, piston, and vane compressors. Compatibility varies by product and formulation. Review the individual product cross-reference, technical data, and compressor manufacturer requirements before changing lubricant, especially where PAG or food-grade chemistry is involved.

Yes. The supplied range includes full-synthetic and partial-synthetic blend products, along with specialised PAG, PAO, diester, mineral, and food-grade options. Formulation affects compatibility, thermal stability, water resistance, oil-life claims, and application suitability. US Compressor can provide selection guidance based on the compressor model and current lubricant.

Yes. Several products are identified as NSF H1 or as meeting H1 requirements for incidental food contact. These include food-grade options intended for compressor lubrication in food and beverage processing environments. H1 status does not remove the need for proper handling, contamination controls, and confirmation that the selected product suits the specific compressor and application.

Start with the compressor manufacturer’s specification and the lubricant currently installed. PAG products are listed as compatible with most OEM PAG compressor lubricants, while other synthetic products may be compatible with different chemistries. Verify cross-reference guidance before mixing or changing oils, because compatibility can vary and some products specifically exclude silicone-based lubricants.

US Compressor provides technical support, customer contact assistance, product compatibility consultation, and free oil analysis for parts, kits, and lubrication. The company also offers lubricant selection guidance and access to compressor parts and related products. Provide the compressor brand, model, current lubricant, application, and operating conditions for a more suitable recommendation.