Is engine coolant divided into diesel and gasoline?
1 Answers
Engine coolant is not divided into diesel and gasoline. Functions of coolant: Prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block during cold weather parking; prevents corrosion of metal parts and aging of rubber components; reduces scale formation to avoid clogging circulation pipes and affecting the heat dissipation function of the cooling system; prevents engine overheating, ensuring the engine operates at the proper working temperature; provides lubrication for the water pump, thermostat, and other components. Coolant composition classification: Coolant consists of water, antifreeze, and additives. Based on the antifreeze component, it can be classified into alcohol-based, glycerol-based, and ethylene glycol-based coolants. Alcohol-based coolant uses ethanol (commonly known as alcohol) as the antifreeze, which is inexpensive, has good fluidity, and is simple to prepare. However, it has a low boiling point, is prone to evaporation, has an easily increased freezing point, and is flammable. It is gradually being phased out. Glycerol-based coolant has a high boiling point, low volatility, is non-flammable, non-toxic, and has low corrosiveness, but its freezing point reduction effect is poor, and it is costly and expensive, making it difficult for users to accept. Only a few Nordic countries still use it. Ethylene glycol-based coolant uses ethylene glycol as the antifreeze, with small amounts of anti-foaming and anti-corrosion additives. Since ethylene glycol is highly soluble in water, it can be mixed to achieve various freezing points, with the lowest freezing point reaching -68°C. This type of coolant has a high boiling point, low foaming tendency, good viscosity-temperature performance, and anti-corrosion and anti-scale properties, making it an ideal coolant. Currently, almost all engines and commercially available coolants are ethylene glycol-based. Compressor refrigerant is sometimes also referred to as coolant.
