Encyclopedia Magica Text[]
This oil adds a bonus of +2 to the user's Charisma for 24 hours.
The Complete Thief's Handbook Text[]
Oil of Slickness: The consistency of this magical substance is variable; sometimes it is found as a small vial of very viscous oil, sometimes as a pot of thin, creamy white salve. It is applied by rubbing into the skin of the hands (taking one round). When rubbed in, it improves the speed and coordination of the hands so that all manually-based thieving skills (pick pockets, open locks, find/remove traps) are improved by 10%. A vial or pot of this oil (or salve) usually contains 1d4+4 applications. The effect lasts for 1d4+4 turns. The bonuses to the ability scores cannot be claimed by any thief who is wearing gauntlets or gloves of any kind, including magical ones!