ISO VG 150, AGMA 4 Synthetic Non-EP Gear Oils

International Standards Organization Viscosity Grade 150, America Gear Manufacturer's Association #4 S, Synthetic Non-EP Gear Lubricants. These are Synthetic Gear Oils that do not contain Extreme Pressure (EP) additives that that are not desirable in gearboxes where the corrosion of yellow metals is a concern.