I developed a slight squeel at 44-45k miles. I removed my front pads originally at about 3k miles and lubed them when I noticed slight irregular wear. I did the same thing at 44-45k miles but it didn't solve the problem. I had a tiny bit of pad left, so I ordered some new ones ASAP from rock auto. The rotors are slightly warped and I figured I'll run them another 40-50k and just buy new ones. I took some pics of my pads with 47,695 miles (25-30k hard uber taxi miles, lots of fully loaded stop and go)