What is the identification mark for the coolant filler port?

[Ezekiel]

The coolant filler port is generally located in the engine compartment. The container holding the coolant resembles a kettle, and the cap of the kettle has a triangular identification mark. Coolant replacement method: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leakage or cracks in the pipelines, with a focus on the five-way water pipe. The five-way pipe is named for its five connecting interfaces to various parts. The coolant flows through the five-way pipe and is then distributed to different parts of the vehicle to function. If there is any leakage of coolant in this part, replace the water pipe or re-secure the interface as needed. Drain the old coolant, then flush the liquid channels with clean water. Add clean water to the coolant reservoir and continue injecting water until it flows continuously through the engine cooling system. Then, start the engine and let it idle for 3 to 5 minutes to circulate the water. The water initially flowing out of the reservoir may appear slightly pinkish. Continue adding clean water until the outflow is clear. Note: Remember to disconnect the heater hose and drain the water from the heater core. Coolant replacement interval: For vehicles that operate for long periods, such as taxis, high-quality coolant should generally be replaced once a year. For vehicles with shorter operating times, replacement can be done every two years or every 30,000 kilometers. To prevent excessive foam formation, which reduces the heat exchange efficiency between the coolant and engine components, ensure the product is within its validity period when adding it. Long-life coolant can be valid for up to three years. If suspended particles, sediment, or discoloration are observed in the coolant, replace it promptly and clean the system.