I have a tri-band UHF-mount antenna on my car. Occasionally, I park in a parking garage that requires that I fold the antenna down. Over time, it has become more difficult to lift and fold the antenna over. There doesn't appear to be any degradation in the components of the fold-over. It's simply a tight fit. Would it hurt the antenna or its performance to put a very small amount of light machine oil on the fold-over mechanism to make it the fold-over easier?