在润滑油的日常使用过程中，有的车主在日常开车后会发现机油变的黑乎乎的，这时候就会担忧是不是机油出现质量问题，有的就会直接选择换机油。那么这个机油变黑是什么原因引起的呢?下面润滑油厂家为大家介绍一下润滑油可能变黑的三个原因。

　　Daily use in lubricating oil, some owners will find the oil change in daily driving after dark, when fear is not oil quality problems, some will directly change the oil. Well, what's the reason for the darkening of the engine oil? The following Lubricant Manufacturers will give you three reasons why the oil may darken.

　　1、变黑还可能由于在换机油时没有清洗油底壳或者是机油过滤器的性能导致。

　　1, darkening may also result from the failure to clean the sump or the oil filter due to changing the oil.

　　2、发动机的使用情况：发动机正常使用是不会对润滑油有非常大的影响的，但如果发动机经常用用停停，就会加速油泥的产生，同样会加速润滑油变黑的情况。发动机长时间超负荷的工作，也会加大变黑情况的发生。

　　2, the use of the engine, the engine normal use is not a very big impact on the lubricating oil, but if the engine often use stop, will accelerate the sludge production, will also accelerate the lubricating oil black case. Engine work over a long period of time, will also increase the black case.

　　3、燃料的质量：燃料中烯烃和硫的含量越高，就越容易产生油泥，油泥的出现会加快润滑油变黑的速度。

　　3, the quality of fuel: the higher the content of olefins and sulfur in the fuel, the more likely to produce oil sludge, oil sludge will accelerate the speed of the oil black.