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Vacuum Oil and Fluids

Vacuum Pump Oil, Fluids & Lubricants

Shop vacuum pump oil, synthetic fluids, flushing fluid, PFPE fluids, diffusion pump fluids, and OEM-equivalent replacement oils.

The right vacuum pump oil helps protect vanes, seals, bearings, and internal pump components while improving pump performance and service life. Vacuum Pump Supply offers mineral vacuum pump oil, synthetic vacuum pump oil, flushing fluid, diffusion pump fluids, and specialty lubricants for many major vacuum pump brands.

Use this page to quickly find oil by type, application, or OEM cross-reference.

Maintenance tip:
Always replace vacuum pump oil after a rebuild, after contamination, or when oil appears dark, milky, dirty, or degraded. Fresh oil is one of the easiest ways to protect your pump investment.
Need an OEM equivalent?
We can help match vacuum pump oil for Leybold, Edwards, Busch, Becker, Welch, Alcatel / Adixen / Pfeiffer, Rietschle, and other major brands.

Mineral Vacuum Pump Oil

General-purpose vacuum pump oil for many rotary vane and oil-sealed vacuum pumps.

Synthetic Vacuum Pump Oil

Synthetic fluids for applications requiring improved thermal stability, longer service life, or higher performance than standard mineral oil.

Vacuum Pump Flushing Fluid

Use flushing fluid during maintenance to help remove degraded oil, residue, and contamination before refilling with fresh vacuum pump oil.

PFPE & Specialty Vacuum Fluids

Specialty fluids for chemically demanding or oxygen-service applications where standard mineral or synthetic oils are not suitable.

Diffusion Pump Fluids

Diffusion pump fluids for high-vacuum systems, lab equipment, coating systems, and other diffusion pump applications.

Vacuum Pump Oil Cross Reference

Find OEM-equivalent vacuum pump oil replacements by brand, oil family, or viscosity.

Choosing the Right Vacuum Pump Oil

Oil Type Best For Notes
Mineral Oil General rotary vane pump service Most common choice
Synthetic Oil Higher heat, longer service, demanding use Better stability
PFPE Fluid Chemical / oxygen-compatible applications Specialty use only
Diffusion Pump Fluid High-vacuum diffusion pumps Not for rotary vane pumps
Flushing Fluid Cleaning during oil changes or rebuilds Use before fresh oil
Not sure which oil you need?
Send us your pump model number or the OEM oil name and we will help match the correct replacement.
Get Help Choosing Oil