The Mobil Vactra ™ Oil Number Series is a high-quality lubricant for rails, specifically designed to meet the requirements for accuracy, separability of aqueous cutting fluids and protection of precision equipment for machine tools. The Mobil Vactra Oil number series is made of high quality base oils and balanced performance with an advanced additive system that provides controlled friction properties, outstanding fluid compatibility for aqueous cutting fluids and corrosion protection of parts and equipment. The unique additives provide excellent frictional properties on a wide variety of materials, including steel against steel and steel against polymer, reducing stick-slip and rubbing. This gives a smooth, uniform movement, and improves machine productivity and accuracy. It also helps extend the life of the tool and strengthen the surface. The Mobil Vactra Oil number series is optimized to provide excellent shear fluid separability from many shear fluids and minimize the corrosion effect of high pH shear fluids on lubricated surfaces.