My e-brake has not worked great since I bought my X at about 30k miles. I have been hauling a trailer and finally decided I had better put in new shoes. When I took the driver side off, the shoes had half or better left, but were not adjusted right. I adjusted those and moved to the passenger side. That side had almost new looking shoes, but the inside of the drum was oily. It didn't smell strongly like grease, and the brake caliper was completely dry and did not look like it had leaked, in fact, nothing outside the drum was wet at all. I am not sure what could be the cause here. Did the old owner do something stupid, or am I missing something?