Featured image for "Maximize Compressor Efficiency: When and How to Change Compressor Oil" blog post. Orange compressor.

Maximize Compressor Efficiency: When and How to Change Compressor Oil

Maintaining your air compressor is key to avoiding sudden breakdowns and costly repairs. Whether in your garage or on a job site, the process of changing the oil in a reciprocating air compressor is straightforward and crucial for optimal performance. Here’s your quick guide:

Synthetic Compressor Oil - ISO 46, SAE 20.
AMSOIL Synthetic Compressor Oil – ISO 46, SAE 20

Step-by-Step: How to Change Compressor Oil

Tools Needed:

  • Drain pan
  • Funnel
  • Clean rags
  • Wrench or socket for the drain plug
  • New compressor oil (ensure correct viscosity)


AMSOIL ISO 100 100% Synthetic Compressor Oil.
AMSOIL ISO 100 100% Synthetic Compressor Oil

Before beginning, confirm that your compressor requires oil as some models are oil-free. Consult the owner’s manual for specific instructions and the required oil type.


  • Check Oil Type and Quantity
  • Warm Up the Compressor
  • Drain Old Oil
  • Inspect and Clean
  • Refill Oil
  • Replace Cap and Clean Up

Frequency of Oil Change:

Consult your manual as the frequency can vary; many models recommend every 100 hours of operation. Always check the oil level before use and consider an oil analysis periodically to judge the condition of the oil.

AMSOIL pc banner.

What is Compressor Oil?

Compressor oil is specially formulated to protect air compressors. Unlike motor oil, it’s designed to withstand the unique demands of an air compressor, offering exceptional protection against wear, managing heat, and resisting moisture without the use of detergents. This allows water to settle easily for removal and prevents emulsification.

For optimal protection and efficiency, use the correct viscosity, typically ISO 68 or ISO 100, and decide between synthetic or conventional based on your climate and usage demands.

Spotlight on AMSOIL Synthetic Compressor Oil

Switch to AMSOIL PC Series Synthetic Compressor Oil for enhanced performance and longevity. This premium oil, designed with advanced synthetic compounds and additives, delivers superior protection in high temperatures and extends operational life up to 8,000 hours. Here’s how it benefits your compressor:

  • Efficiency: Prevents viscosity buildup, enhancing compressor effectiveness.
  • Protection: Features anti-foam agents and additives that control heat, oxidation, and wear.
  • Durability: Resists water, rust, and corrosion, prolonging oil life.
  • Safety: Reduces the risk of fire with minimal carbon formation tendencies.
  • Versatility: Suitable for different compressor types, pumps, and applications.

For optimal results with AMSOIL, flush your compressor system and replace filters before transitioning to this oil.

Engine Maintenance banner.

Remember, regular maintenance, including timely oil changes, is your best strategy to ensure your air compressor operates reliably and effectively whenever you need it. Happy maintaining!

AMSOIL dealer banner.
Spread the love

Leave a Comment

Your email address will not be published. Required fields are marked *