Cold flow properties

Cold flow properties refer to how well a liquid, like diesel or oil, remains workable and fluid at low temperatures. When temperatures drop, some liquids tend to thicken or solidify, making pumping and engine operation difficult. Good cold flow properties mean the fuel stays relatively fluid, preventing blockages and ensuring reliable performance during cold weather. These properties are typically measured by parameters such as cloud point (the temperature when wax crystals first appear), pour point (the lowest temperature the liquid can flow), and cold filter plugging point (the temperature at which fuel can pass through a filter).