Schaeffer’s 238 Ultra Supreme Moly grease. This is a desecendant of the original Black Beauty axle grease used in the mid 1800’s on the wagon wheels of many travelers to the Calif. Gold fields. Ultra supreme is a multi-purpose, tacky, synthetic blend extreme pressure grease that is especially formulated for use in all types of heavy duty equipment being used under adverse conditions of excessive pressure, high shock loading, exreme hot and cold temperatures and moisture.