That classic “eeeek” sound when a door opens is more than just annoying. It’s also a sign that metal parts are rubbing dry against each other. Over time, that friction can wear hinges out faster.
A drop or two of suitable oil (or a spray lubricant) on hinge joints makes them move smoothly again. The sound disappears, and the metal doesn’t grind as harshly. It’s a 2-minute job that can make doors feel newer and more solid.
You don’t have to wait until it’s unbearable. A quick check whenever you notice the first bit of noise is enough to keep things running quietly.
