List of uses for WD40

[Jamastiene]

11. It also works wonders for car door (or car gas tank) locks that are hard to turn.

Come to think of it, I have used WD-40 both on rusty locks and locks that are frozen due to icing and freezing rain we get from time to time. I rarely drive, so both the gas tank lock and the car door lock can sometimes be hard to turn. That also seems to happen with my front door lock too. It is an outside door and it subject to our constantly high humidity where we live.

When a lock doesn't want to open due to either sitting for so long or from ice, I stick the nozzle in and hold a rag under it (to keep the run-off from getting on the door if it runs out) and give it a little spritz of WD-40. After that, the lock opens right up. It also worked on the squeaky door hinge on my driver's side car door.