COMPARISON OF AUTOMOTIVE LUBRICATING GREASES.

Six commercial automotive greases were secured from local dealers and evaluated along with one qualified MIL-G-10924B grease. The tests used were, worked penetration, Four Ball wear and Extreme Pressure, roll stability, water washout, water resistance and rust prevention. These tests are all found in the ASTM Manual or in Specification MIL-G-10924B. Results indicate the MIL-G-10924B grease to be better than average in wear, EP, and roll stability and superior in rust prevention and water resistance. (Author)