Phillips 66 Multipurpose R&O 150 Circulating Oil is a rust and oxidation oil with anti-wear additives made for use in circulation systems, centrifugal air compressors, geared turbines and enclosed gear drives. It has excellent water separating properties to minimize the formation of emulsions, and is resistant to foam buildup. It features mild wear protection along with protection against rust and corrosion.  It has low carbon forming tendency.

Specifications:
ABB G12106
Denison Hydraulics HF-1
Alstom Power HTGD 90 117 for geared turbines
ASTM D4304 Type 1 Turbine Oil
British Standard 489
General Electric GEK 101941A, GEK 4650e
Ingersoll-Rand Centak centrifugal compressors
U.S. Military MIL-L-17672D
U.S. Steel 126