Everybody in your office will be annoyed at a squeaky office chair, if it's yours at home you will be annoyed. Either way let's fix it. It's easier than you would think.
First make sure the chair is on a even surface and is level, if this is all in alignment let's proceed. I always try to use organic materials when possible. So I go to olive oil first, you can also use WD40. Put this on the springs and bolts under the seat. Make sure you have a cloth for any extra oil that could stain, if you haven't already protected the area (seat and space where fixing).
If it still squeaks go to every bolt, screw, and spring seeing if they are tight, or evenly tightened. You can adjust them or just unscrew and redo to make sure each one is in its correct position. If the chair is older, use the oil (or DW40) before you unscrew the screws or bolts. Then apply again before you replace them. This step will make sure everything is lubricated evenly.
This should have your squeaky chair as quiet as the day it was bought. Remember moisture in the air or air conditioning causes rust, so using the oil prevents and removes the built up rust keeping it from happening again in the future.
Source: Common sense, I watched my daddy and brothers do this all the time
By Luana M. from San Diego, CA
This page contains the following solutions.
If the location of the squeak is more inside the mechanism, get some WD-40 with the long red tube on it and spray up in there. If it's not way in there, then you can use WD-40 without the sprayer tube, or even use spray vegetable oil.