PROTECTOLUBE® 4000 was developed for the U.S. Defense (War) Department in the early 1940’s.
 
PROTECTOLUBE® 4000 is a multifunctional penetrating lubricant. PROTECTOLUBE® 4000 cleans as well as lubricates. Organic acids are neutralized and oxidation is stabilized. Although invented in the 40’s, it contains the latest technologies in its formulation. PROTECTOLUBE® 4000 is blended from carefully selected prime “heart-cut” neutrals, conditioners, acid neutralizers, moisture absorbing agents, friction release compounds and pure mineral base top oils. It contains the same additives as our Protect-O-Lube® 400, the only difference is that PROTECTOLUBE® 4000 is bottled in an aerosol can.