| Purpose | Enable lubricant to flow at low temperatures |
| Purpose | Reduce tge rate of viscosity change with temperature |
| Purpose | Prevent lubricant from forming a persistent foam |
| Purpose | Retard oxidative decomposition |
| Purpose | Reduce friction and wear and prevent scoring and seizure |
| Additive Type | Corrision and Rust Inhibitor |
| Purpose | Prevent corrosion and rusting of metal parts in contact with the lubricant |
| Purpose | Keep surfaces free of deposits |
| Purpose | Keep insoluble contaiminants dispersed in the lubricant |
| Purpose | Alter coefficient of friction |
