T4201G is a high-quality functional composite additive developed for gear transmission system lubricants with low viscosity and high load capacity. For example, railway locomotive traction gear oil is also suitable for the deployment of other medium and heavy load vehicle gear oils and industrial gear oils. Products meet API GL-5+, US S224 and other specifications. Excellent base oil adaptability, suitable for hydrogenated base oil, BS bright oil. The new formulation system is recommended for use alone and is not mixed with other types of gear oils.