What are the components of antifreeze?

[SadieLynn]

The main components of antifreeze are: 50% purified water, 40% methanol, and 10% other substances. Methods for selecting antifreeze: The basic indicators of antifreeze are the freezing point and boiling point. The freezing points of antifreeze available on the market include -15°C, -25°C, -30°C, -40°C, and other specifications. Generally, it is advisable to choose one that is at least 10°C lower than the lowest temperature in your region. Methods to determine if antifreeze is insufficient: Observe the antifreeze warning light on the dashboard. If it lights up, it is likely due to insufficient antifreeze, though it could also be caused by excessively high temperature inside the cylinder. Check the antifreeze reservoir. If the liquid level is below the minimum mark (MIN), do not continue driving and add antifreeze promptly. Check the water level scale markings on the antifreeze bottle. The normal antifreeze level should be between the maximum and minimum water level marks. Whether antifreeze is insufficient depends on the scale. If the antifreeze level is below the minimum mark, it indicates a shortage of antifreeze.