a semisolid lubricant, requires different types of testing than liquid fuels or lubricants. Among these are penetration, water washout properties, shear stability properties, roll stability, oxidation and dropping point temperature. The specification for automotive lubricating greases is ASTM D4950. SAE and NLGI are organizations which also have significant input into the automotive grease specifications. For grease applications other that automotive, the measurement properties are quite similar.