How Often Should the Antifreeze in Nissan X-Trail Be Replaced?

[Francisco]

Nissan X-Trail's antifreeze should be replaced every two years or every 30,000 kilometers. To prevent excessive foaming that could reduce the heat exchange efficiency between the antifreeze and engine components, ensure the product is within its validity period when adding it. If suspended particles, sediment, or signs of deterioration or discoloration are found in the antifreeze, it should be replaced promptly, and the system should be cleaned. The antifreeze replacement procedure is as follows: Before completely replacing the antifreeze, conduct a thorough inspection to check for any leaks or cracks in the pipes, with particular attention to the five-way hose. The antifreeze is distributed to different parts of the car through the five-way hose to perform its function. If there is any leakage of antifreeze in this section, replace the hose or resecure the connection as needed. Drain the old antifreeze, then flush the liquid channels with clean water. Add clean water to the antifreeze reservoir, then continue to pour water into the reservoir so that it flows continuously through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. The water initially flowing out of the reservoir will have a faint pink tint. Continue adding clean water until the outflowing water is clear. Note: Remember to remove the heater hose and drain the water from the heater core. Approximately one hour after draining, add the new antifreeze through the radiator hose. Then, pour another container of antifreeze into the antifreeze reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. During this time, the coolant level will drop slightly as air is purged from the system. Top up the antifreeze to the "MAX" mark on the reservoir.