[morzh]

I use white spirits (another term for mineral spirits).

I do not have the oil and never used it.

I am not sure how it is used. If the dial is grimey, sure, it wil disolve that grime. But then you need to

1) wipe it.
2. You need to wipe it clean, else it will remain as a oily film and wikk keep attracting dust/dirt. Which is, again, calls for mineral spirits.
Which, I think, could've been used in the firts place.