Miles Mil-Gear S ISO 680 is full synthetic gear oil, formulated to provide a long fluid life with excellent lubricity and wear protection. It offers outstanding protection — even in the most demanding applications. • Enhanced resistance against water contamination • Reduced maintenance costs and downtime • Excellent protection against wear, rust and corrosion • Non-toxic/non-hazardous. TYPICAL PROPERTIES Lubrication Properties MILES MIL-GEAR S ISO 680 Viscosity Index 115, Viscosity cSt @ 40°C 640.1, Viscosity cSt @ 100°C 44.1, Flash Point °F 523, Auto-Ignition Point °F 815, Pour Point °F -18, Timken OK Load, Kg 40, Copper Corrosion, 24 Hr 1a, Demulsibility, 130°F, 30 Min 40/40/0