A fluid for automatic gearboxes, torque converters, power steering, hydrostatic transmissions and hydraulic or mechanical systems, where the DEXRON or MERCON standard is required. A low-temperature fluid which enables very smooth gear shifting when cold. It possesses a high viscosity index, and greater fluidity at low temperatures for the same hot viscosity, thereby making starting in cold weather easier. Features very good oxidation resistance and excellent anti-wear, anticorrosion and anti-foaming properties.