Atlas Copco Compressor Oil: Choosing the Right Type for Your Machine
Choosing the right oil is one of the simplest ways to protect your Atlas Copco compressor. The correct lubricant controls heat, reduces varnish, and helps your machine run longer with less downtime.
What Oil Do I Need? (Quick Answer)
- Stationary rotary screw: Roto-Inject Fluid (standard) or Roto-Xtend Duty Fluid (extended life)
- Portable units: Paroil M (mineral) or Paroil S / Paroil Extra (synthetic)
- Food grade: GA FG
Why These Oils
- Roto-Inject Fluid: Factory-standard for Atlas Copco rotary screws; balanced cost and performance for routine drains.
- Roto-Xtend Duty (Ndurance): Premium synthetic for longer drains and hotter/continuous duty.
- ParOil M: Mineral-based portable oil for dependable jobsite protection.
- ParOil S / Extra: Synthetic upgrade for portables—better high-temp stability and longer life.
- GA FG: NSF H1 food-grade options for regulated plants.
- Roto Extreme (aka ParOil Mtreme / Sxtreme): Heavy-duty synthetic for severe conditions (high temp/long life).
How to Choose (Fast Guide)
- Compressor type: Stationary rotary → Roto oils. Portable → ParOil oils.
- Environment: Food/beverage/pharma → GA FG. Hot 24/7 plant → Roto-Xtend or Roto Extreme.
- Maintenance strategy: Routine drains → Roto-Inject / ParOil M. Fewer oil changes → Roto-Xtend / ParOil S / Extreme.
Which Oil Do I Need?
| Compressor Type | Typical Use | Oil to Use |
|---|---|---|
| Rotary Screw (Stationary) | Bolted down in a plant, production duty | Roto-Inject Fluid • Roto-Xtend Duty • Roto Extreme |
| Portable Rotary Screw | Tow-behind units (185, 375, 650, 900 CFM) | ParOil M • ParOil S / ParOil Extra |
| Food-Grade | Food & beverage, pharma plants | GA FG |
Roto-Inject vs. Roto-Xtend (Stationary Rotary)
- Roto-Inject Fluid: Standard Atlas Copco rotary screw oil. Balanced cost & performance, routine 2,000–4,000 hr drains (application-dependent).
- Roto-Xtend Duty (Ndurance): Premium synthetic (POE-based family) for extended ~8,000 hr life and higher thermal stability: ideal for hotter climates and 24/7 plants.
| Feature | Roto-Inject Fluid | Roto-Xtend Duty |
|---|---|---|
| Service Life | ~2,000–4,000 hours | ~8,000 hours |
| Base | Mineral / synthetic blend | Premium synthetic (POE family) |
| Best Fit | Standard plant duty | High-heat or extended duty plants |
ParOil M vs. ParOil S (Portable Rotary)
- ParOil M: Mineral oil for Atlas Copco portables; reliable and cost-effective (~1,000–2,000 hr typical).
- ParOil S / ParOil Extra: Synthetic upgrade for longer drains (~4,000 hr class) and better high-temperature stability.
| Feature | ParOil M | ParOil S / Extra |
|---|---|---|
| Service Life | ~1,000–2,000 hours | ~4,000 hours |
| Base | Mineral oil | Full synthetic |
| Best Fit | Routine jobsite use (185/375 CFM) | Hotter climates or larger portables (650/900 CFM) |
Food-Grade Options
- GA FG: NSF H1 food-grade, suitable for regulated plants; designed for low carryover and broad temperature stability.
Find by Part Number
Have an Atlas Copco part number and want the right oil? We’ll match it for you.
- Fast cross-reference by part number
- Verify compatibility for your exact model
- Get a link to the correct product
Contact our team with your part number.
Tip: If you’re not sure which oil family you have, choose from the guides above (Roto-Inject, Roto-Xtend, ParOil M/S/Extra, GA FG) and we’ll confirm it.
Basic Maintenance Tips
- Track hours: Service intervals are based on run hours as well as calendar time.
- Check oil condition: Dark or sludgy oil means it’s time to change.
- Use quality filters: Pair your oil with the correct Atlas Copco oil filter to keep contaminants out.
Ready to buy? Shop Atlas Copco oils & coolants: