Can red and blue car antifreeze be mixed?

[LeOlive]

Car antifreeze in red and blue colors cannot be mixed. Common antifreeze colors include red, blue, green, and yellow. The functions of antifreeze are: cooling, anti-freezing, anti-corrosion, lubrication, and cleaning, with the primary purposes being anti-freezing and cooling to maintain the engine at normal operating temperatures and preventing freezing in extremely low temperatures. The roles of antifreeze are: 1. Providing anti-freeze protection for the engine against low-temperature environments; 2. Offering efficient heat dissipation; 3. Preventing the coolant from freezing and cracking the radiator or damaging the engine cylinder block and cylinder head during cold winter parking. The components of antifreeze include: calcium chloride from inorganic substances, and methanol, ethanol, ethylene glycol, glycerin, lubricating oil, and purified water from organic substances.