On Tue, 26 Jun 2007 01:29:07 -0700, Keith
wrote:

Use half mineral oil and half deodorized kerosene.

The deodorized kerosene (Lamp oil) is cut with mineral oil to increase
viscosity and improve damping.
In the past, the "whisky" compass used alcohol and distilled water
for a slightly denser formulation.

These fluids get thick at low temperatures. For the Arctic, a
synthetic oil might be a better bet - a flatter viscosity curve with
temperature. The extras that go in can be defoamers/detergents.

Brian Whatcott Altus OK