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中鑫之宝专家告诉你如何鉴别假机油！
2019-01-16 17:28:16 点击：1001
机油是汽车不可缺少的，它充当着汽车的“血液”，是保证发动机正常运转的必需润滑剂，其作用是润滑金属件，减少机件间的摩擦，将发动机工作时产生的巨大热量带走，同时还有密封、防锈、防蚀、减震、清洁、等作用。对于机油的选择将会直接影响到整车的使用寿命。
回收废油，经处理后灌装上市
不法商贩为了获得更大的利润，将修理厂或者4s店回收的机油经过沉淀、过滤、热沸腾等手段将废机油多次提炼，再经过废品收购站收购用过的旧机油桶进行灌装以次充好，坑害爱车族们。
单纯的基础油混合，不加任何添加剂
将最原始的胚机油灌装出售，虽然该机由要比上面提到的回收机油稍微好一些，但是原始机油中没有添加任何抗磨剂、金属保护剂及一些稳定机油品质的化学制剂，在长时间高温运作下，机油粘稠度会发生很大变化，仍可对发动机造成破坏。
低档油灌装，以次充好
以低廉的价格买进普通油料，经过包装，摇身一变，变成了上百元的多效合成机油，这样做就是在坑害车友们，同时也损坏了一个真正品牌在车友心中的地位。
真假难辨，需细致鉴别
原装机油外包装：一次性油封口盖，缺口处有锡纸，高档机油锡纸上有凸起logo标，油桶精致，图案字码边缘清晰、整齐。
原装机油液体：色浅透明，无杂质、悬浮物或沉淀物，无刺激性气味，晃动时流动性较好
使用假机油，得不偿失
易氧化、变稠，形成积碳、油泥，造成机油泵滤网、发动机油道的堵塞，导致发动机干磨，出现磨缸、拉瓦、烧瓦等故障，提早磨损发动机，减少发动机使用寿命
低温下不易点火，不能形成有效的油膜保护层，损坏发动机的活塞、轴承及其他部件。同时导致发动机无法正常散热，导致发动机温度异常升高，加剧橡胶及塑料件老化程度。
如何选择适合自己爱车的机油？
机油的粘度与温度呈反比的关系。当发动机冷态时，机油粘度较高。若选用的机油较稠，在车辆起动时，需要较大的起动力矩，便会给起动马达、电瓶等增加额外的损耗，甚至导致无法起动。同时机油过浓流动性差。更会产生诸如润谓不良．易形成气缸内积炭．散热效率下降、水温升高、油耗增加等现象。但若机油过稀，机油由于难以形成油膜或形成的油膜过薄而易引起润滑不足，导致零件非正常磨损、发动机噪声增大等问题。
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