Blue Blood SAE 80W-90 LS Gear Oil is an extreme pressure gear lubricant with Limited Slip performance. It is formulated with a high performance additive for extreme shock load, and protection in severe operating conditions in passenger cars, trucks, and on- and off-highway service vehicles requiring a GL-5 performance level. It provides excellent protection from rust and corrosion and contains foam inhibitors that provide excellent oxidation resistance and thermal stability.