YAMAMOTO premium quality anti-wear hydraulic oils specially developed for application subjected to wide range of temperature or small viscosity changes with fluctuating temperature is required. They are formulated with high quality paraffinic base oils, a highly shear stable polymer and an advanced additive system to meet the stringent requirements of modern hydraulic system using high pressure high output pumps and critical requirements of other hydraulic system components such as high accuracy numerically controlled machine tools and those employing close clearance servo valves. These oils provide excellent protection against oxidation degradation, rust & corrosion and wear.