WD 40, Water Displacement, Lubricant, Cleaner, Corrosion Prevention Stock Photo Alamy Did you know WD 40 isn't actually a lubricant? It's a water dispersant (hence the name: Water Displacement, 40th formula). For long term lubrication, especially on moving parts like hinges or bearings, always follow Rocket TT Multi Use Super Lubricant Water Displacement WD Solution 2x 450ml + Straw Thursday Trivia: Is WD 40 Multi Use Product a lubricant? A: Yes. While the W D in WD 40 stands for Water Displacement, WD 40 Multi Use Product is a unique, special blend of lubricants. The product's formulation