Have to add coolant every 3 months?

Whether the coolant needs to be added every three months depends on the vehicle's usage and the condition of the cooling system; normally, such frequent addition is unnecessary. The coolant replacement interval for most vehicle models is 2 to 3 years or 40,000 to 60,000 kilometres driven. Some long-life formulas, such as Mazda's genuine FL22, can last up to 10 years or 200,000 kilometres before the first replacement. If the level drops abnormally, inspect for potential leaks. The primary functions of coolant are to regulate engine temperature and prevent corrosion. While its performance degrades over time, frequent short-term replenishment may indicate system leaks or excessive evaporation. Always follow the maintenance schedule specified in the vehicle's manual, use the manufacturer-recommended coolant type, and ensure complete drainage of old fluid with system flushing during replacement. If excessive coolant consumption is observed, promptly inspect the sealing integrity of components including the radiator, water pump, and hoses.