Is it coolant or antifreeze in the Civic?

[OJayden]

The liquid in the Civic is both coolant and antifreeze. The full name of antifreeze should be antifreeze coolant, meaning coolant with antifreeze functionality. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head when the car is parked in cold winter conditions. How to choose antifreeze: The basic indicators of antifreeze are its freezing point and boiling point. On the market, antifreeze comes in several specifications with freezing points of -15°C, -25°C, -30°C, -40°C, etc. Generally, it's advisable to choose one that is at least 10°C lower than the lowest temperature in your region. How to determine if antifreeze is low: Observe the antifreeze warning light on the dashboard. If it lights up, it's likely due to low antifreeze levels, though it could also be caused by excessively high cylinder temperatures. Check the antifreeze reservoir. If the fluid level is below the minimum mark (MIN), do not continue driving and add antifreeze promptly. Check the water level scale markings on the antifreeze tank. The normal antifreeze level should be between the maximum and minimum marks. Whether antifreeze is low depends on the scale. If the antifreeze is below the minimum mark, it indicates a shortage.