Where is the car antifreeze added?
2 Answers
Car antifreeze is added to the antifreeze reservoir, which is located in the engine compartment. Generally, antifreeze is added to the car's coolant reservoir. Antifreeze is usually colored (red or green) for easy identification. Antifreeze is the circulating cooling medium in the engine cooling system. Antifreeze has two characteristics: low freezing point and high boiling point. Therefore, it not only ensures the normal operation of the car's cooling system in winter but also prevents the coolant from boiling in summer, avoiding overheating. Additionally, antifreeze usually has anti-rust and anti-corrosion properties.
Last time I helped my neighbor check their car, I noticed many people couldn't find the coolant filler port—it's actually that transparent plastic reservoir in the engine bay. On most cars, it's located near the headlight area, with a wavy line or thermometer symbol on the cap. I always wait for the engine to cool completely before changing coolant, otherwise the hot liquid could spray out and cause burns. When topping up, keep an eye on the reservoir's level marks—maintaining the fluid between MIN and MAX is safest. Don't try to save money by mixing different colored coolants—a friend's car once had pump corrosion from mixed fluids, costing over 800 yuan in repairs. In northern winters with sub-zero temperatures, it's especially important to choose specialized coolant with the right freezing point—plain tap water won't cut it, as a frozen cracked engine could mean tens of thousands in repair costs.
