Compounded with advanced sulfur-phosphorus extreme pressure additives, United LSD Fully Syn FE Unigear S5 Gear oils are designed to meet the severe lubrication requirements of modern passenger cars and truck axles, especially those with hypoid gear sets. Due to the excellent characteristic of the synthetic base stock, United LSD Fully Syn FE Unigear S5 Gear oils exhibit less deposit formation, less viscosity changes during operation and more stable performance in extreme pressure properties if compared with the conventional mineral gear oils.