All our quilting blades are oily too, and yes I went to HF and picked up 7 packages, I had bought the cutter a while ago because they were out of the blades and I wanted to see how they lasted. I have had the same blade in for a couple of weeks now, and its still cutting like butter. I have to say I am the worlds worst on cutter blades. So for it to last that long, and several blocks later is almost a first. I didn't try to even take off the oil, it didn't seem to cause a problem and the blades I buy at quilt shop are oiled, so figured its a blade thing. But I love them and I love the price even better, am making another trip in a week or so to get some more. At that price who can go wrong and its not like they spoil or anything lol.
Rita