冬季气候变冷,为了防止机体冻裂,可在发动机的冷却系统内加注防冻液。市场上常见的防冻液主要有:乙醇、甘油——乙醇、甘油、乙二醇等。这些防冻液由于配制比例和成分不同,凝固点也不相同。常规选用的防冻液的凝点应低于当地最低气温10℃以上,以免气温低于防冻液的结冰点,使防冻 Cold weather in winter, in order to prevent the body from cracking, the engine cooling system can be antifreeze. Antifreeze common on the market are: ethanol, glycerol - ethanol, glycerol, ethylene glycol and so on. These antifreeze due to the preparation of different proportions and composition, freezing point is not the same. Conventional selection of antifreeze condensing point should be lower than the local minimum temperature above 10 ℃, so as to avoid air temperature below the freezing point of antifreeze, antifreeze