Eastern petroleum private limited since 1964 manufactures a wide range of industry oils. Being a part of that easto hydraulic oil hlp are blended with high viscosity index base oils and selected antiwear and other additives that give good demulsibility, hydraulic stability even in presence of moisture. Their filterability has been found excellent and they have good film strength, excellent corrosion resistance and antifoam quality. Easto hydraulic oil hlp are very useful for high liquid pressure systems requiring good thermal stability. They are compatible with elastomer used in hydraulic systems and eliminate leakages which normally are due to wearing of seals. It is also recommended for sophisticated high performance electro- hydraulic or computerized numerically controlled [cnc] systems.