The .25 ounces of oil in this hypodermic dispenser is high grade machine oil. The dispenser has a 1" long needle with a rubber stopper cap. To dispense, the unit must be squeezed – it is not gravity fed.
Info for Lubricating Motors:
Current Foredom motors (not the shaft and sheath but the motor itself) should NEVER be lubricated. The following older models do require routine lubrication:
Series CC, DD and MM sleeve bearing motors
Series EE, GG, and MMG motors
Series R and RB motors