How Often Should the Coolant Be Replaced in a New Car?
2 Answers
The coolant in a new car should be replaced approximately every 2 years or 40,000 kilometers. If the coolant changes color or sediment appears, it also needs to be replaced. Below are methods for checking the coolant level and an introduction to the functions of coolant. Methods for checking the coolant level: When locating the coolant reservoir, you will see two scale lines, marked MAX and MIN. As long as the level is between these two lines, it is acceptable. If the level is below the minimum scale line, coolant needs to be added. When adding coolant, refer to the vehicle's manual for the specified coolant freezing point to ensure the correct type is used. Wait until the car has cooled down before adding coolant, as some coolant reservoir caps also serve as radiator caps. Opening them while the engine is hot can cause the coolant to spray out, leading to burns. Functions of automotive coolant: It provides anti-corrosion protection for components in the cooling system. It prevents scale buildup, avoiding a reduction in the radiator's heat dissipation efficiency. It ensures the engine operates within the normal temperature range.
I've driven several new cars, and the coolant generally doesn't need frequent replacement. The coolant in a newly purchased car is fresh and can last for two to five years or until the car has run 30,000 to 50,000 kilometers. I remember my last car had its coolant replaced in the fourth year. During regular maintenance, I would check the coolant color—if it changes from bright green to cloudy, it indicates aging. If you delay too long, the coolant's protective ability declines, and the internal radiator can easily rust or even clog, causing the engine to overheat, especially during high-speed driving in summer. So don't skimp on this expense—spend a few hundred bucks to get it done at a 4S shop. Before replacing, you can test the freezing point to see if it matches seasonal temperature changes, which can extend the engine's lifespan, saving you hassle and being cost-effective.
