My Janome 6500 needs that same oil wick oiled regularly or the machine jumps and bangs so hard that it can displace the bobbin case which is exactly what happened before I found out about that **** oil wick. No where in my Janome 6500 manual did it talk about this and my dealer assured me that no oiling was needed. They were both wrong. My sewing machine needle went right through the bobbin case and ruined it and my dealer charged me to replace it, calling it operator error. Guess who won't buy another new machine from that dealer?