Mobil Vactra™ Oil Numbered Series are premium quality slide oils specifically designed to meet the precision, coolant degradability and equipment protection requirements of precision machine tools. Mobil Vactra Oil Numbered Series are carefully formulated from high quality base oils and are water-miscible, providing controlled friction properties. Performance balance is achieved with an advanced additive system that is compatible with metalworking fluids and provides corrosion protection to parts and equipment. The special additive combination reduces stick-release action and provides excellent frictional properties in a wide variety of channel materials, including steel-on-steel and polymer-on-steel. This provides smooth and uniform motion at design machining speeds, increasing machine productivity and surface finish. The Mobil Vactra Oil Numbered Series is optimized to provide easy separation from most water-miscible coolants while minimizing the corrosive effects of high pH coolants on lubricated surfaces.