The Lucas Oil 10121 Synthetic SAE 75W-140 Gear Oil is a full-synthetic gear lubricant formulated for applications requiring SAE 75W-140 GL-5 gear oil. The 1-quart bottle is suitable for compatible differentials, axles, and other automotive or equipment applications where this viscosity and specification are recommended. The formulation uses synthetic base oils and a specialized additive package designed to provide lubrication under high loads and elevated temperatures. Lucas Oil states that the product is suitable for both standard and limited-slip differentials when the vehicle or equipment manufacturer specifies SAE 75W-140 GL-5 gear oil.
