At what temperature does windshield washer fluid freeze in a car?
1 Answers
In summer, windshield washer fluid will freeze at around 0 degrees Celsius because it does not contain antifreeze substances. Antifreeze windshield washer fluid contains antifreeze agents and will not freeze even when the external temperature drops to approximately -20 degrees Celsius. Cooling function: Cooling is the basic function of coolant. When the engine is running, it generates a large amount of heat, with about 60% of this heat being dissipated into the surrounding space through the cooling system. Water and methanol-based coolants have low boiling points and are prone to boiling. If the vehicle operates under conditions where the coolant is boiling, even for a short period, it can cause engine damage or even complete failure. Anti-corrosion function: Components in the cooling system, such as the radiator, water pump, cylinder block, cylinder head, and water distribution pipes, are made of metals like steel, cast iron, brass, copper, aluminum, and tin. Due to the different electrode potentials of these metals, electrochemical corrosion can easily occur in the presence of an electrolyte. Additionally, acidic byproducts formed from the decomposition of glycol-based substances in the coolant and acidic exhaust gases from fuel combustion may infiltrate the cooling system, accelerating corrosion. Anti-scaling function: Scale in the cooling system originates from cations such as calcium and magnesium ions in the water. Under thermal load conditions, these alkaline earth metal cations readily react with anions in the water to form scale. Scale can wear out the seals of the water pump and accumulate on the outer walls of the cylinder block water jackets, reducing thermal conductivity. This can cause a sharp increase in temperature in high-temperature zones of the cylinder head, leading to cylinder cracking.
