VP Hi-Performance SAE 75W90 Gear Oil s a superior extreme pressure, multi-purpose, limited slip API GL-5 oil. Our fully synthetic blend exceeds the needs of automotive gear applications and race cars under high-speed/high shock load and low-speed/high torque conditions.It features exceptional friction-reducing properties, resulting in increased power, lower operating temperatures, reduced start-up wear, and better fuel economy!Hi-Performance 75w90 has outstanding thermal stability NS resists high temperature oxidation and deposits. It provides outstanding rust and corrosion protection and resistance to foaming. The oil's superior shear stability minimizes viscosity loss, and its limited slip performance reduces chatter and improves traction.It retains solid film strength and wear protection under severe service, and is compatible with conventional and synthetic gear oils, plus most limited slip differentials. It also meets the requirements of most differential and manual transmissions requiring an API GL-5 gear oil.