Audio Technica LP 7 Question

Hello! I am the proud owner of an A-T LP7 and I am wondering about the tonearm. I use the cueing lever 100% of the time to drop the stylus, and I have noticed lately that when I am moving the tonearm back and forth along the tonearm rest, there is some slight squeaking. I am wondering if the rubber on the tonearm rest can be safely lubed lightly with something like white lithium grease or another type of lube? Or should it be kept dry? Thanks!