Ultra Coolant
- Viscosity
- ISO 46 equivalent
- Service life
- 8,000 hr / 2 yr
- • IR R-Series
- • IR UP6 / UP5
- • IR Sierra
- • IR SSR EP/HP 25–300 hp
- • Sullair Sullube 32 (same PAG family, verify with IR before substituting)
- • Quincy QuinSyn PG
- • Chemlube / Summit PGS-46 style aftermarket PAG
Seals: Viton and PTFE. Attacks some paints and polycarbonate bowls.
Varnish tendency: Lowest of all common stocks.
Ultra EL / Ultra Coolant EL
- Viscosity
- ISO 46
- Service life
- 16,000 hr extended life
- • IR R-Series with extended-life package
- • Ultra Coolant (shorter life, same base)
Seals: Viton and PTFE. Attacks some paints and polycarbonate bowls.
Varnish tendency: Lowest of all common stocks.
SSR Ultra Plus / X-Tend
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Older IR SSR packages
- • Some IR two-stage units
- • Mobil Rarus SHC 1026
- • Chevron Cetus PAO 46
- • Summit SH-46
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Sullube 32
- Viscosity
- ISO 32/46
- Service life
- 8,000 hr
- • Sullair LS / ES series
- • Sullair 185 portables (lubricated)
- • IR Ultra Coolant (both PAG — still requires OEM sign-off)
Seals: Viton and PTFE. Attacks some paints and polycarbonate bowls.
Varnish tendency: Lowest of all common stocks.
24KT
- Viscosity
- ISO 46
- Service life
- 8,000 hr / up to 24,000 hr on qualified units
- • Sullair ShopTek
- • Sullair LS series (24KT fill)
- • Mobil Rarus SHC 1026
- • Summit SH-46
- • Kaeser Sigma Fluid S-460 (PAO)
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Sigma Fluid S-460
- Viscosity
- ISO 46
- Service life
- 8,000 hr / 3 yr
- • Kaeser SK / SM / SX
- • Kaeser ASD / BSD / CSD / DSD
- • Mobil Rarus SHC 1026
- • Sullair 24KT
- • Summit SH-46
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Sigma Fluid Plus
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Kaeser units in hot or high-duty service
- • Gardner Denver AEON 9000SP
- • Summit DSL-46
Seals: Viton preferred. Replace NBR o-rings on conversion from mineral.
Varnish tendency: Very low, and actively removes deposits (watch for filter plugging after the change).
Sigma Fluid M-460
- Viscosity
- ISO 46
- Service life
- 2,000 hr
- • Budget / low-hour Kaeser installs
- • Any ISO 46 R&O compressor oil
Seals: Nitrile (NBR), Viton, EPDM all fine.
Varnish tendency: High — expect separator lacquering if discharge runs hot.
Roto-Inject Fluid
- Viscosity
- ISO 46
- Service life
- 4,000 hr / 2 yr
- • Atlas Copco GA 5–90
- • Atlas Copco G-series
- • Chicago Pneumatic CP semi-synthetic
- • Summit Supra 46 (verify)
Seals: Nitrile and Viton fine.
Varnish tendency: Moderate.
Roto-Xtend Duty Fluid
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Atlas Copco GA VSD+
- • GA 30–160 with Xtend package
- • Mobil Rarus SHC 1026
- • Kaeser Sigma Fluid S-460
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Roto-Foodgrade Fluid
- Viscosity
- ISO 46
- Service life
- 6,000 hr
- • Food and beverage GA installs
- • Mobil SHC Cibus 46
- • Summit Ultima FG-46
Seals: Nitrile, Viton.
Varnish tendency: Low.
QuinSyn PG
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Quincy QGV
- • Quincy QSI (PG fill)
- • IR Ultra Coolant
- • Sullair Sullube 32
Seals: Viton and PTFE. Attacks some paints and polycarbonate bowls.
Varnish tendency: Lowest of all common stocks.
QuinSyn Plus
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Quincy QSI
- • Quincy QGS
- • Mobil Rarus SHC 1026
- • Sullair 24KT
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
QuinSyn F
- Viscosity
- ISO 46
- Service life
- 6,000 hr
- • Quincy food-grade installs
- • Mobil SHC Cibus 46
Seals: Nitrile, Viton.
Varnish tendency: Low.
AEON 9000SP
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Gardner Denver Electra-Saver
- • GD ESD / EnviroAire
- • Kaeser Sigma Fluid Plus
- • Summit DSL-46
Seals: Viton preferred. Replace NBR o-rings on conversion from mineral.
Varnish tendency: Very low, and actively removes deposits (watch for filter plugging after the change).
AEON 4000
- Viscosity
- ISO 32/46
- Service life
- 4,000–8,000 hr
- • Gardner Denver rotary screw
- • CompAir packages
- • Mobil Rarus SHC 1026
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Rarus SHC 1026
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Universal PAO fill for most rotary screws
- • Kaeser S-460
- • Sullair 24KT
- • Quincy QuinSyn Plus
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Rarus 427 / 425
- Viscosity
- ISO 100 / 46
- Service life
- 2,000 hr
- • Reciprocating compressors
- • Older rotary screws
- • Chevron HDAX
- • Shell Corena S2 P
Seals: Nitrile (NBR), Viton, EPDM all fine.
Varnish tendency: High — expect separator lacquering if discharge runs hot.
Corena S4 R
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Universal rotary screw synthetic
- • Mobil Rarus SHC 1026
- • Kaeser S-460
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Champion AMOhr / F-Series
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Champion rotary screw
- • Gardner Denver AEON 9000SP
Seals: Viton preferred. Replace NBR o-rings on conversion from mineral.
Varnish tendency: Very low, and actively removes deposits (watch for filter plugging after the change).
CP Corally / CP synthetic
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • CP QRS
- • CP RS series
- • Atlas Copco Roto-Xtend Duty (same group)
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Kobelco Emeraude ALP
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Kobelco oil-flooded screws
- • Summit POE-46 (verify with OEM)
Seals: Viton, PTFE. Avoid EPDM with mineral cross-contamination.
Varnish tendency: Low.
Boge Syprem
- Viscosity
- ISO 46
- Service life
- 8,000 hr
- • Boge C / S series
- • Mobil Rarus SHC 1026
Seals: Nitrile, Viton, PTFE fine. Verify old NBR o-rings after conversion.
Varnish tendency: Low.
Equivalents share a base stock and a similar additive package — they are a starting point for sourcing, not an OEM approval. Using a non-approved fluid can void airend coverage. Confirm against the current OEM fluid data sheet and document the change on the service report.