—A low viscosity oil with high a viscosity index specially formulated ensuring high thermal stability, high antioxidant and detergent level allowing to maintain the performance levels for a longer period of use and preventing from deposits, gums and varnish formation. Selected additives are used to provide higher antiwear, anticorrosion and antifoam ensuring no effects to elastomers and non ferrous metals like copper or alloys. These oils ensure precise and smooth automatic shifting of gears at very low speeds.