Citgo Pacemaker 19 Circulating Oil can be used as a hydraulic, circulating, bearing or turbine oil. This product has rust and oxidation additives and is resistant to foaming therefore it is readily separable from water. It provides a long service life in closed circulating systems that is assured by low carbon forming tendency and excellent resistance to oxidation. Other applications include air line oil, non-detergent oil, compressor oil and gear oil. The high viscosity index in this oil imparts superior temperature viscosity characteristics.