How many liters of coolant are needed for a Focus replacement?

[ColtonMarie]

The Focus requires 4L of coolant for replacement. When replacing the coolant, be sure to bleed the air, otherwise the coolant level may not be sufficient, leading to an increase in engine temperature. How to choose coolant: The basic indicators of coolant are freezing point and boiling point. The market offers coolants with freezing points of -15°C, -25°C, -30°C, -40°C, etc. Generally, it is advisable to choose a coolant with a freezing point at least 10°C lower than the lowest temperature in your region. Coolant replacement cycle: For vehicles that operate for long periods, such as taxis, high-quality coolant should generally be replaced annually. For vehicles with shorter operation 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. Long-life coolants can have a validity period of up to three years. If suspended particles, sediment, or signs of deterioration or discoloration are found in the coolant, replace it promptly and clean the system.