Posted on 12/19/2025

Coolant is one of those fluids that rarely gets attention until something goes wrong. Most drivers top off fuel regularly, change oil on schedule, and maybe notice wiper fluid, but the coolant level can quietly drop without any obvious sign until the temperature gauge starts creeping upward. Once that happens, the engine is already under stress. The real question many people ask at that point is, “How long can I drive a car without coolant?” The honest answer is that even a short drive without proper coolant can be risky. Why Coolant Is So Critical to Your Engine Coolant does much more than keep the engine from freezing in winter. It carries heat away from the hottest parts of the engine, moves that heat to the radiator, and helps maintain a stable operating temperature. It also contains additives that fight corrosion inside the engine block, radiator, and heater ... read more