MECHA TOOL Full Synthetic Gear Oil 80W-140 is a multipurpose, heavy duty gear lubricant formulated for heavy duty differentials that call for an API GL-5 type product. It is a thermally stable, extreme pressure lubricant designed to operate in both high and low temperature conditions for all season use, even in sub-zero temperatures. - Outstanding Thermal Stability allows operation in both high & low temperature conditions. - High Film Strength & Shear Stability prolongs equipment life. - Excellent low temperature properties promote oil flow to help protect gears & bearings even at sub-zero temperatures. - Includees rust, oxidation & corrosion inhibitors for superior, long-term performance.