1. Introduction
This manual provides essential instructions for the safe and effective use, storage, and handling of Chevron Cetus PAO 46, a premium synthetic air compressor oil lubricant. Cetus PAO 46 is designed to deliver superior performance in various air compressor applications, offering extended drain intervals and protection against wear, rust, and oxidation.
Please read this manual thoroughly before using the product to ensure optimal performance and safety.
2. Safety Information
Handling industrial lubricants requires adherence to safety protocols. Always consult the Safety Data Sheet (SDS) for comprehensive safety information specific to Chevron Cetus PAO 46. The SDS provides details on potential hazards, first aid measures, fire-fighting procedures, accidental release measures, handling and storage, exposure controls, and personal protection.
- Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety glasses or goggles, chemical-resistant gloves, and protective clothing, when handling the lubricant.
- Ventilation: Ensure adequate ventilation in areas where the lubricant is handled or stored.
- Skin Contact: Avoid prolonged or repeated skin contact. Wash thoroughly with soap and water after handling.
- Eye Contact: In case of contact, flush eyes immediately with large amounts of water for at least 15 minutes. Seek medical attention if irritation persists.
- Ingestion: Do not ingest. If swallowed, do not induce vomiting. Seek immediate medical attention.
- Fire Hazards: This product is combustible. Keep away from open flames, sparks, and hot surfaces. Use appropriate fire extinguishers (e.g., foam, dry chemical, CO2).
3. Storage and Handling
Proper storage and handling are crucial for maintaining product quality and ensuring safety.

Image 1: A 55-gallon drum containing Chevron Cetus PAO 46 lubricant. The drum is blue with the Chevron brand logo in the center, indicating the product's origin and type.
- Storage Conditions: Store the 55-gallon drum in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials.
- Container Integrity: Keep the drum tightly closed when not in use to prevent contamination and evaporation.
- Spill Prevention: Store drums on secondary containment pallets to prevent environmental contamination in case of leaks or spills.
- Lifting and Moving: Use appropriate lifting equipment (e.g., drum dollies, forklifts) when moving the 55-gallon drum to prevent injury and damage.
- Labeling: Ensure all containers are clearly labeled with product identification and hazard warnings.
4. Setup and Preparation
Before introducing Chevron Cetus PAO 46 into an air compressor system, proper preparation is essential.
- Review Compressor Manual: Always refer to the air compressor manufacturer's instruction manual for specific lubricant requirements and change procedures.
- System Shutdown: Ensure the air compressor is completely shut down, depressurized, and locked out/tagged out to prevent accidental startup.
- Drain Old Lubricant: Completely drain the existing lubricant from the compressor system, including the sump, oil cooler, and separator. Dispose of used oil according to local regulations.
- Filter Replacement: Replace all oil filters and air/oil separators as recommended by the compressor manufacturer.
- System Flush (if necessary): If switching from a different type of lubricant (e.g., mineral oil to synthetic), a system flush may be required to prevent incompatibility issues. Consult Chevron technical support or the compressor manufacturer for guidance.
5. Operating (Lubricant Application)
Follow these steps for filling the air compressor with Chevron Cetus PAO 46.
- Fill Compressor: Carefully pour Chevron Cetus PAO 46 into the compressor's oil fill port, using a clean funnel to prevent contamination.
- Check Level: Fill to the recommended level indicated by the compressor's sight glass or dipstick. Do not overfill.
- Initial Run: Start the compressor and allow it to run for a short period (e.g., 15-30 minutes) to circulate the new lubricant.
- Re-check Level: Shut down the compressor, allow the oil to settle, and re-check the lubricant level. Top up if necessary.
- Monitor Performance: During initial operation, monitor the compressor for any unusual noises, temperatures, or pressure readings.
6. Maintenance
Regular maintenance ensures the longevity and efficiency of your air compressor and the lubricant.
- Lubricant Analysis: Periodically conduct oil analysis to monitor the condition of the lubricant and the compressor. This can help determine optimal drain intervals and detect potential issues early.
- Drain Intervals: Chevron Cetus PAO 46 offers extended drain intervals compared to conventional mineral oils. Follow the compressor manufacturer's recommendations or adjust based on oil analysis results.
- Filter Changes: Adhere to the compressor manufacturer's schedule for replacing oil filters and air/oil separators.
- System Cleanliness: Maintain a clean operating environment to prevent contaminants from entering the lubricant system.
7. Troubleshooting
This section addresses common issues related to air compressor lubrication.
| Problem | Possible Cause | Solution |
|---|---|---|
| High Operating Temperature | Low oil level, clogged oil cooler, incorrect lubricant viscosity, contaminated lubricant. | Check oil level and top up. Clean oil cooler. Verify correct lubricant. Perform oil analysis and change if contaminated. |
| Excessive Oil Consumption | Worn seals, damaged air/oil separator, overfilling. | Inspect and replace seals. Check and replace air/oil separator. Ensure correct oil level. |
| Short Lubricant Life | High operating temperatures, contamination, incompatible lubricant mixture. | Address temperature issues. Prevent contamination. Ensure system is flushed if switching lubricant types. |
For issues not listed, consult your compressor manufacturer's manual or contact Chevron technical support.
8. Specifications
Key specifications for Chevron Cetus PAO 46 lubricant.
- Brand: Chevron
- Product Name: Cetus PAO 46
- Material: Synthetic
- Liquid Volume: 55 Gallons (7040.0 Fluid Ounces)
- Recommended Uses: Lubricant for Air Compressors
- Specific Uses: Lubricate Air Compressors, Prevent Corrosion
- Item Form: Oil
- SAE J300 Viscosity Grade: 50
- UPC: 023968381431
9. Disposal Information
Used lubricants must be disposed of responsibly and in accordance with all local, state, and federal environmental regulations. Do not discharge into drains, soil, or watercourses. Contact a licensed waste management company for proper disposal or recycling of used oil and contaminated materials.
10. Warranty and Support
For specific warranty information regarding Chevron Cetus PAO 46, please refer to the official Chevron product documentation or contact Chevron customer service directly. Technical support and further assistance can be obtained through authorized Chevron distributors or by visiting the official Chevron website.
Note: This manual provides general guidelines. Always prioritize the safety data sheet (SDS) and specific equipment manufacturer's recommendations.





