ExploreWorldShots on Instagram: "e dark liquid being poured into the measuring cup appears to be engine oil or a similar type of industrial lubricant, rather than a household item. Visual search results suggest the bottle is very similar to containers used for storing engine oil, refrigerants, or 3D printer resin. The container being poured into is a standard graduated measuring cup, commonly used for accurately measuring liquids in various applications, including cooking, scientific experiments