天气预报 > 汽车 > 冷车启动的时候需要热车吗
冷车启动的时候需要热车吗
更新时间: 2021-06-19 01:22:19  

1、冷车启动的时候要预热。如果不预热车辆,短时间内可能不会造成严重问题,但长期这样就会使发动机“折寿”了。

2、此外,发动机在未达正常工作温度之前(大约为摄氏90~110度之间),无法有效地油完全气化。容易造成燃油无法快速雾化燃烧,而附着在节气门、缸壁或活塞四周形成积碳,导致日后着车困难、怠速抖动、油耗增加等弊端。

关键词: 启动 时候 需要

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