The CASTROL optigear synthetic 800/680 gear oil, available in a 5-gallon container, provides extensive protection against thermal breakdown in high-temperature settings. It through excellent oxidation stability, supporting operation over extended periods. Advanced anti-wear additives decrease wear, effectively extending gear life. This gear oil offers excellent corrosion protection, helping prevent surface damage on gears. Additionally, it maintains exceptional shear stability, ensuring consistent viscosity across various operational conditions.