My problem got significantly worse when I stuck the oil straw through the crack at the back of the dial and gave it a couple drops of Eezox. Before the dial was sticking and squeaking, after I oiled it spun freely but not it might take several tries to get open. I've since then done some research and found that many locksmiths recommend a dry lube like graphite for mechanical combination locks, they claim oil can gum up the mechanism and cause the exact problem I'm having right now. I need to take it out and see if I can clear out the oil and use a dry lube instead. If not, a new lock isn't that expensive.