What is another word for black oils?
Pronunciation: [blˈak ˈɔ͡ɪlz] (IPA) 
Black oils are a type of oil that is characterized by its dark color and distinct viscosity. These types of oils are commonly used in various industries, including the automotive, manufacturing, and chemical sectors. Synonyms for black oil include heavy oil, crude oil, bitumen, tar, and petroleum. Heavy oil is often used to describe the viscosity and density of black oil. Crude oil is another term used to describe unrefined, black oil. Bitumen and tar typically refer to the thicker and stickier black oils, while petroleum refers to the refined and processed form of black oil. Regardless of the term used, black oil remains a valuable resource in many industries.
