To answer your question, don't know. I do know that Fiebings Oil dye isn't really oil. However, do have a whole differnet thought for you. Weaver makes a product called Oil Stain Rich Brown, this a pigment product that you mix into neatsfoot oil. You can control the color by the concentration of the oil stain. Most of the world knows I dislike dyeing leather however we use this brown tinted oil often. It works and without the problems of dyeing. Give er a try.