Metallic layers can be selectively deposited on surfaces of a substrate relative to a second surface of the substrate. The continuity additive is a cocktail containing one or more dialkanolamide derived from a fatty acid, an oil soluble sulfonic acid and a dialkanolamine. The second signal can be generated by in situ PCR or PCR in situ hybridization. Crankcase gasses flow through the filter disk and the filtered gas flows out an opening defined by the case lead-in.