Petroleum, along with oil and coal, is classified as a fossil fuel and in its natural form when first collected is usually named crude oil, and can be clear, green or black and may be either thin like gasoline or thick like tar. ATP provide a range of petroleum equipment laboratory in different categories such as Viscometers, Flash Points, Grease ,Cold Properties , Fuels, Lubricants and Engine Coolants, Oxidation Stability, Demulsivity and Foaming etc.