A green, tacky, Lithium Complex grease.   Surpasses NLGI #2 specifications, this will work where NLGI #3 is recommended, such as Leaf Spring Pivots. Grease is nominally about 85% oil, and the rest is thickener and additives.  The oil does the lubricating and the thickener holds it in place in the face of varying environmental challenges. Most greases are manufactured to passenger vehicle specifications and use an oil viscosity of SAE 40.  CenPeCo Double Duty is made for heavy duty use and is made with oil of SAE 140 viscosity. Recommended for a variety of applications, it's excellent in wheel bearings, u-joints and slide pins.