👉 A lightweight fluid, often referred to as a low-density fluid or lightweight liquid, is a substance characterized by its low viscosity and reduced density compared to traditional liquids like water or oil. This makes it easier to pump, transport, and use in various applications such as cooling systems, hydraulic systems, and industrial processes. Lightweight fluids are typically engineered to have specific properties that enhance efficiency, reduce energy consumption, and minimize environmental impact. They are commonly used in aerospace, automotive, and electronics industries due to their ability to perform effectively under demanding conditions while being lighter and more compact than heavier fluids.