Product Specifications: 4L, 18L | Executive Standard: GB13895-2018 | Product Description: Viscosity Grades: 80W-90, 85W-90, 85W-140 | Formulated with high-quality imported, highly refined base oils (high viscosity index) and imported additives. | Offers exceptional thermal stability, extending the oil's service life. | Contains additives that protect gears against pitting, breakage, and scuffing, enhancing wear protection. | Contains additives that reduce chatter in limited-slip differentials, ensuring smooth and stable gear operation. | Meets API GL-5 quality standards and SAE viscosity grade standards. | Long-mileage, heavy-duty gear oil. | Recommended oil change interval: 100,000 km. | Suitable for: Vehicles operating under conditions of high-speed shock loads, high-speed/low-torque, and low-speed/high-torque. Ideal for GL-5+ gear applications—specifically hypoid gear drive axles in heavy-duty trucks, buses, and other vehicles—and also suitable for manual transmissions.