Formulated to provide superior performance in hydraulic systems. Contain fluid zinc. Excellent anti-rust, anti-corrosion, anti-foam, and anti-oxidation properties. High aniline points ensure long seal life with fewer leaks. Can withstand elevated temperatures and high pressures over extended drain intervals. High natural V.I. provides stable viscosities over a wider operating temperature range. Outstanding cleanliness charicteristics for today's close tolerance hydraulic system componants. Excellent ISO cleanliness ratings. Provides long lasting, smooth operation in hydraulic systems, and bearing operations.