Renewable Lubricants Bio-Food Grade ISO 32 Hydraulic Fluid, 1 Gallon Jug Incorporating the super high viscosity index of the Stabilized* High Oleic Base Stocks (HOBS) into the formula, increases the viscosity index past synthetic levels (Energy Conserving Formulas). Bio-food grade hydraulic fluids are multi-functional biobased lubricants that contain ingredients which are "generally regarded as safe" (GRAS) for food possessing equipment Formulated to perform in hydraulic systems and gear drives that require anti-wear, anti-rust, anti-oxidation, anti-foam, and demulsibility properties Highly inhibited against moisture and rusting in both fresh and sea water and pass both A and B sequences of the ASTM D-665 turbine oil rust test Energy conserving formulas