Heat 1 cup linseed oil on stove - DO NOT BOIL (it flashes easily). NOTE: Finnish flaxseed oil IS linseed oil.
Melt equivalent weight carnauba or bee's wax in the linseed oil.
Remove from heat source and move away from any ignition source. Add 1 cup turpentine (gum or synthetic), and mix. Pour into sealable tin or other heat proof recepticle (jam jars ok), and allow to cool.
I made a mix up about 15 years ago and still not empty!
This mix was WIDESPREAD use in the British Commonwealth for decades (maybe centuries).
Also use dwas a mix of 2/3 linseed oil (boiled) to 1/3 white vinegar. rubbed onto stocks, the vinegar cleaned and the oil penetrated. The oil prevented the water and acid in the mix from entering the wood, but allowed it to clean the surface.