汽车保养时矿物质、半合成、全合成机油如何选择

　　把机油称为车的“血液”，重要性已经不言而喻了，选对机油对车子的保养很大帮助，还要及时更换机油，保证车子正常行驶。不同机油有不同的更换时间。

　　矿物质机油

　　矿物质机油适用于本身排放要求比较低的车型，例如几万元的微型、小型车和经济型车。因为这些车型的发动机本身动力不强，机油功效衰减所形成的动力下降感觉也不强。自然地对驾驶感受影响也不会大，甚至你都感觉不到变化。所以这些类别的车型就可以选择矿物机油，达到用车最经济化。5000公里更换一次

　　半合成机油

　　半合成油是在矿物油的基础上经过加氢裂变技术提纯后的产物，它是由矿物机油、全合成机油以4：6的关系混合而成，半合成油的纯度非常接近全合成油，但其成本较矿物油略高，是矿物油向合成油的理想过渡产品。7000-8000公里更换一次

　　全合成机油

　　合成机油品质较好，使用起来会在以下方面有明显感觉:冷启动更加顺畅，尤其在东北地区尤其明显;更加节省燃油;换油周期更长，相当于普通润滑油的1.5倍或更长;延长发动机使用寿命，减少维修率;由于合成机油的清净性优越，发动机缸体更加清洁。10000公里更换一次

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