对于用车,车主们要学习的有很多。比如说,很多车主会等到油表灯亮了之后才会想到加油,这种做法其实是比较伤车的,油表灯亮了说明油泵里的油量较少,这时候如果不及时加油的话,那很可能会损坏油泵。此外,有的车主总喜欢大脚踩油门,这样听起来确实很有感觉,但一直大脚踩油门的话,费油不说,很可能会缩短发动机的寿命。
此外,在冬天的时候,车主们应该都有这样的经历,那就是汽车启动会比较困难,并且经常伴随着发动机抖动。不过,冬天起步发动机抖动是正常现象,是发动机温度过低造成的,一般会随着发动机温度上升抖动现象会逐渐减弱。不仅如此,冬天汽车起步还要做的一步就是热车,那么,原地热车和低速行驶热车,哪个更合理?听听老车主怎么说!
首先,冬天热车是一种保护发动机的行为,尤其是在北方,热车可以说是必须的。我们知道,冬天温度低,车上的油液比如润滑油、机油、变速箱油的流动性降低,从而大幅度削弱这些油液的润滑作用。而如果这个时候启动车子直接激烈驾驶的话,那对发动机和变速箱的损伤是非常大的。而热车之后,油液和水温的温度上升,润滑效果恢复到正常水平,就可以保护发动机和变速箱不被磨损。那么,冬天热车究竟是原地热车还是低速行驶热车,哪个更合理呢?
一般来说,现在所说的热车和以前热车的概念大不相同,以前热车要花5分钟,也就是真正意义上让车热起来。不过现在电喷技术的普及,热车只需30秒-1分钟就可以搞定,只是热完车后要缓慢行驶1-2分钟后才能激烈驾驶。因此,如今所说的热车一般都是指的是低速行驶热车,而非以前长时间的原地热车。长时间原地热车虽然可以让发动机处于正常温度下工作,但会无缘无故增加油耗,甚至会加重发动机积碳,这样就得不偿失了。
因此,如果车主比较赶时间,完全可以采用低速行驶热车的方式,不过前提是要让车子先在原地热30秒左右,等到机油、润滑油、水温温度上升到正常水平就可以保持低速行驶。注意的是,此时最好让发动机转速保持在2000转左右,一般低速行驶1分钟就可以,之后就可以正常驾驶了,这样可以在最大程度上减少热车带来的副作用。
原创文章,作者:cesifu,如若转载,请注明出处:http://www.cesifu.com/article/63079.html
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