Things You'll Need
O-rings are made of a number of substances including polyurethane, silicone, neoprene, nitrile rubber or fluorocarbon. The purpose or function of an O-ring is to provide a tight seal between two objects. You can find O-rings in a variety of products like water hoses, hydraulic cylinders, faucets and hummingbird feeders. It is important to apply vegetable oil to O-rings to keep them lubricated to maintain a tight seal and to keep them from drying out or rotting.
Remove the O-ring. Some O-rings can be lifted out with your fingers while others need to be gently pried with a screwdriver.
Pour a small amount of vegetable oil in your palm or a small lid.
Stick your finger in the oil and then apply the vegetable oil on the O-ring.
Rub all areas of the O-ring with oil. Reapply once a month or as needed to keep the O-ring flexible.
Gail Delaney is a writer in South Dakota and has articles published online at various websites. She is the garden editor for BellaOnline, with years of gardening experience. Being the caretaker of her parents led her in the direction of medical issues, especially natural remedies.