Lucas Heavy Duty Mining and Construction Grease is a smooth, dark gray, lithium complex grease fortified with 5% molybdenum disulfide to provide excellent shock loading protection in the most adverse operating conditions. It protects wrist pins and booms from wear and extends equipment life, which reduces downtime and improves productivity. This grease features a state-of-the-art polymer system, providing stay-in-place performance even under the harshest operating conditions. It provides excellent water resistance, rust and corrosion inhibition properties, and outstanding extreme pressure properties.