在潤滑油的日常使用過程中，有的車主在日常開車后會發現機油變的黑乎乎的，這時候就會擔憂是不是機油出現質量問題，有的就會直接選擇換機油。那么這個機油變黑是什么原因引起的呢?下面潤滑油廠家為大家介紹一下潤滑油可能變黑的三個原因。

　　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、變黑還可能由于在換機油時沒有清洗油底殼或者是機油過濾器的性能導致。

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

　　2、發動機的使用情況：發動機正常使用是不會對潤滑油有非常大的影響的，但如果發動機經常用用停停，就會加速油泥的產生，同樣會加速潤滑油變黑的情況。發動機長時間超負荷的工作，也會加大變黑情況的發生。

　　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、燃料的質量：燃料中烯烴和硫的含量越高，就越容易產生油泥，油泥的出現會加快潤滑油變黑的速度。

　　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.