Where to Add Radiator Coolant?
4 Answers
Radiator coolant should be added into the car's expansion tank. Open the engine hood, locate the expansion tank (usually spherical in shape), remove the tank cap, and pour in the appropriate amount of radiator coolant. The optimal filling level is between the MAX and MIN marks. Additional information: Radiator coolant should not be mixed with water. Adding water will reduce the coolant's effectiveness by lowering its boiling point (diminishing cooling performance) and raising its freezing point (making it prone to freezing in cold climates). Although radiator coolant contains water, it is specially treated deionized soft water. Regular tap water contains various impurities and ions that can form scale over time, leading to blockages.
When you pop the hood, see that translucent plastic tank? That's the expansion tank, also called the coolant reservoir, usually round or square-shaped, located prominently on the left side or front of the engine bay. Always ensure the engine is turned off and cooled for at least half an hour before adding coolant – safety first, never operate on a hot engine to avoid burns. Pour slowly to prevent overflow, keeping the fluid level between the MIN and MAX marks. Coolant provides antifreeze protection, boil-over resistance, and prevents rust in the system. I replace mine every two years alongside routine maintenance to prevent engine overheating issues. It's especially crucial in winter – a quick pre-cold-start check saves headaches.
The coolant additive can be directly poured into the expansion tank located in the engine compartment, which is positioned at the front for easy access. The operation is simple: park the car, wait for the engine to cool down, open the cap, and carefully pour in the liquid. Ensure the fluid level is neither too high nor too low—just right. This additive helps extend the lifespan of the cooling system and reduces the risk of corrosion. I make it a habit to check the fluid level every quarter. In summer, evaporation is faster, so extra attention is needed, while in winter, its antifreeze properties shouldn't be overlooked. If you find yourself frequently needing to top it up, there might be a leak. Early detection of issues with pipes or connections can save money and ensure safety.
Simply put, it's about adding radiator coolant (commonly known as "radiator treasure") to the coolant reservoir under the hood. It's a transparent or colored plastic container with clear markings. Add it when the engine is cold, and don't overfill. In winter, it prevents freezing and protects the engine, while in summer, it aids in heat dissipation. I usually buy the type recommended by the manufacturer, and avoid mixing colors to prevent affecting its performance. Remember to replace it regularly to maintain system health and drive with peace of mind.
