My garage door is very loud. I sprayed all of the metal-on-metal moving portions of the garage door (except the Genie screw drive track) with WD-40 as they all have some small degree of rust. This helped quite a bit, but I would like to do more.
I know WD-40 is probably not the right lubricant, so my question is: what is the correct lubricant for the various parts of a garage door, including the screw drive in my Genie garage door opener?