How often should the antifreeze be replaced in the Envision?

[LeMadelyn]

The replacement interval for the antifreeze in the Envision is generally every 2 years or within the range of 40,000 to 60,000 kilometers. Expired antifreeze can cause cylinder corrosion, and in severe cases, it may even cause significant damage to the engine. The antifreeze filler cap is located in the engine compartment near the cooling fan. Simply unscrew the cap to add new coolant. For routine maintenance, it is essential to check whether the fluid level is between the max and min marks. If the level drops significantly, there may be a coolant leak, and the vehicle should be taken to a repair shop for inspection. Coolant consists of three components: water, antifreeze, and additives. It prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block during cold weather when the vehicle is parked. Additionally, it primarily aids in engine cooling, ensuring the engine operates at the correct temperature for optimal performance and preventing damage due to overheating. Typically, coolant should be replaced every 2 years, though some long-life coolants can last 4-5 years before needing replacement.