GL-4 Conventional 80w90 Gear Oil Quart

The GL-4 Conventional 80w90 Gear Oil Quart is a specialized lubricant formulated for use in manual transmissions and transaxles that require a GL-4 rating. This oil is particularly beneficial for older vehicles and those with vintage gearboxes, where modern GL-5 fluids may not be suitable due to their aggressive additive packages.

This conventional formula offers essential shear stability and load-carrying capacity, ensuring smooth shifting performance and protection for synchronizers and bushings. It is engineered with high-quality base oils to maintain consistent viscosity under varying thermal loads, and its formulation focuses on extreme pressure protection without the high sulfur content found in many GL-5 oils.

Ideal for vintage gearboxes and specific industrial applications, this GL-4 Conventional 80w90 Gear Oil Quart is packaged in a convenient 1-quart bottle, making it easy to manage fluid swaps in standard automotive or light-truck differentials and gearboxes. Always verify your vehicle's specifications to ensure compatibility with GL-4 lubricants.