At Flo-Max, we’re proud to supply our own high-quality Vacuum Pump Oil, designed to keep your vacuum pumps performing at their best.
But here’s a critical maintenance step many pump operators overlook: changing the pump oil regularly.
How Often Should You Change Vacuum Pump Oil?
As a rule of thumb, vacuum pump oil should be changed every 200 hours of operation. This routine maintenance is simple but makes a huge difference to pump performance and longevity.

Why Oil Changes Matter
During normal operation, moisture and contaminants can build up in the oil chamber. If left unchanged, this contaminated oil will:
- Reduce ultimate vacuum level of your pump
- Increase wear and tear on pump components
- Shorten the overall service life of your pump
By changing the oil regularly, you:
- Expel built-up moisture
- Maintain strong and consistent vacuum suction power
- Prolong the life of your vacuum pump
Vacuum Pump Oil Options from Flo-Max
AC19 – Engineered for Performance

Our AC19 Vacuum Pump Oil is specially formulated for high-performance vacuum pumps and is available exclusively through Flo-Max.
It’s part of our Air Control range, designed to support vacuum and blower technology across multiple industries.
Whether you’re running rotary vane pumps, laboratory pumps, or industrial vacuum systems, AC19 provides the reliability you need to keep your equipment operating smoothly.
AC20 – Engineered for High Vacuum Pressures
Our AC20 Vacuum Pump Oil is the ideal choice for vacuum pumps with higher pressures.
It’s particularly suited to demanding environments such as laboratories, research facilities, and industrial systems where maintaining a deeper vacuum level is critical. With AC20, you get the stability and reliability required to support sensitive processes and reduce the risk of performance loss under high pressure levels.
Not sure which is right for your system? Our engineers can help you select the most suitable oil based on your pump type and operating conditions.
Don’t Wait for a Breakdown
Skipping regular oil changes might seem like a small cost-saving measure, but the long-term expense of reduced efficiency or pump failure far outweighs the price of a few litres of oil. So start making oil change an essential feature of your vacuum pump maintenance service.
Order Your Vacuum Pump Oil Today
Keep your pumps running at peak performance with Flo-Max AC19 or AC20 specialist-grade Pump Oil.