Vane, piston and gear pumps are the recommended applications for PEAK Anti-Wear Hydraulic Oils, when used in accordance with the equipment manufacturer's recommendations. PEAK's advanced hydraulic and circulating fluids are specially formulated with high-quality base stock and improved, thermally stable zinc additives. As a result, the oils provide outstanding resistance to sludge formation, are chemically stable, and demonstrate excellent anti-wear properties, providing maximum service life to pumps and other system components.