This product features high viscosity and excellent load-carrying capacity for heavy-duty transmission systems under extreme pressure and shock load conditions. It delivers outstanding performance in low-temperature and high-temperature service, thermal degradation and oxidation protection, wear and corrosion reduction, improved shear stability, long-term operation capability and superior fuel economy. It is suitable for gear transmission systems of on-road light and heavy-duty trucks, coaches and vans requiring API GL-5 and MT-1 specifications, as well as other heavy-duty industrial applications.