Oils dyes are concentrated solvent-soluble dyes provided in two forms: powders and high flash, hydro-Treated Aromatic liquid. Oils dyes have been found to be completely miscible in all petroleum fuels, lubricating oils, greases, hydraulic oils and many other related hydrocarbon solvents. Common applications include the coloration of lubricants, such as automatic transmission fluids, fuels, polishes, explosives, adhesives, leak detection and a variety of other solvents.