How to clean oily greasy mess like grease, paint, oil, lubricants and other water insoluble materials, your answer must be use suitable Degreaser. Principally Degreaser work to emulsify oil to attach with water to make emulsion during cleaning process. The conversion of oil into water soluble nature is resulting as a cleaning step. Yes Degreaser is classified in various classes, based on there utility. We have more then 200 types of degreaser, Pl. refer this link to get more details http://rxmarine.com/Degreaser/moya/general/bilge/coldwash