Congrats fellow NH quilter and Featherweight owner! If you cant' find Singer oil, ask around at the local quilt shops what they carry (Nashua Sew 'n Vac, The Bunkhouse, etc.) as they may have an idea. Also, Singer.com may sell directly. You can also "date" your machine through Singer. They will tell you date it was manufactured and where. Do you belong to a local guild? Just curious. I will be a member of Bedford Friends next year.
Anita