求翻译：一些车主喜欢在夏季用自来水代替防冻液，这种做法非常不可取。在气候渐凉的秋季，如果不能及时更换汽车专用的防冻液，一旦遇到温度骤降的天气，极有可能影响到汽车冷却系统的正常工作。王师傅介绍，通常情况下，汽车防冻液的使用周期为两年，如果车主在夏天使用的就是防冻液，只要不超过使用期限，也不用急于更换。如果使用的是自来水，则需要立即更换。在更换防冻液时，一定要先清洗汽车发动机的冷却系统。是什么意思？

Some owners prefer to use tap water instead of antifreeze in the summer, this approach is very undesirable. In the climate becoming cooler autumn, if not changing the car-specific antifreeze in the event of sudden drop in temperature of the weather, is likely to affect the car's cooling system work

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Some owners like to use tap water instead of antifreeze in the summer, this is very undesirable. In autumn the climate becoming cooler, if not in time replace the antifreeze for cars, in the event of temperature drop weather, very likely affect the function of auto cooling system. Master Wang descri

Some owners like to use tap water instead of antifreeze in the summer, this is very undesirable. In autumn the climate becoming cooler, if not in time replace the antifreeze for cars, in the event of temperature drop weather, very likely affect the function of auto cooling system. Master Wang descri