About this item SuperPurpose Is A Calcium Sulfonate Grease Providing Superior Rust & Corrosion Protection & Water Washout Resistance; Especially In The Presence Of Water A Truly Outstanding Multi-Purpose Grease And Is The Closest Thing To An All-Purpose Grease! Suitable Marine & Boat Grease for Propeller Shaft Applications: Mercury And Yamaha Stern Drive e.g. Excellent Choice For Marine Applications As It Contains No Heavy Metals Or Other Environmentally Undesirable Components Provides Protection Against A Variety Of Temperatures And Uses, Extending Service Life For Critical Machinery Parts Subjected To Severe Environments CV Joint, Journal, Anti-friction Bearings, Wheel Bearings, Chassis Fittings, Springs, Water Pumps, Universal Joints, Lawn Mower Equipment, Power Tools And More!