Can Green and Red Antifreeze Be Mixed?

[VonPhoebe]

Whether green and red antifreeze can be mixed depends on the brand and composition of the antifreeze. Antifreeze of different brands or compositions should not be mixed. This is because the production formulas of antifreeze from different brands may vary, and mixing them could lead to chemical reactions between various additives, rendering them ineffective. Antifreeze is a type of coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It offers excellent performance in preventing freezing in winter, boiling in summer, and resisting scale and corrosion year-round. It also prevents the coolant from freezing and expanding in cold winters, which could otherwise crack the radiator or damage the engine cylinder block or head. The main components of antifreeze are: 50% pure water, 40% methanol, and 10% other substances. It is generally categorized into three types: ethanol-water, glycerol-water, and ethylene glycol-water.