In message l.de,
Rufus Stone writes

I have tried the local sewing machine type shops without success. Many
suggest the 3 in 1 type oil, but from experience this dries out very
quickly.

Can anyone point me to a source please?

John Lewis have at least three grades of 'Brother' brand sewing machine
oil. Very good it is, too. I managed to obtain a few disposable
syringes from Boots the Chemist, and use the syringes to apply the oil.
--
Graeme