Proprietary transmission fluid developed for modern high-tech automatic transmissions of Mercedes-Benz cars with a tolerance of 236.15. The fluid is developed taking into account the design solutions and materials of manufacture of transmissions, due to which it has an extremely balanced viscosity, which guarantees the most efficient and stable operation of the transmission, as well as is absolutely neutral in relation to elements made of rubber, plastics, and non-ferrous metals, prevents their destruction and fluid leakage.