My repair guy has me oiling it every day that I use it. Now, do I??? I do when I am going thru at least a bobbin. If I just sit down and sew a tiny bit on that day, I don't. When I am doing some marathon quilting, I will oil every 5-6 bobbins. ( I just quilted 4 quilts with a total of 26 bobbins in 4 days) Many times it is just a bobbin or two and I clean and oil. I have a Bernina 630
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My newest Grandson, Caleb Austin, was born May 29th. I am now Grandma to 4 precious babies. I am so blessed!!!!