It is normal for the engine oil to turn black during operation, so there is no need for the driver to change the oil because of the black color of the oil, which is counterproductive! How to judge whether agricultural oil is changed?
To figure out whether the oil to replace, can use the oil dipstick approach to observation, by putting the oil drops on the oil dipstick, then let stand for a few hours and then to observe, if found in the test paper droplets or a whole there is no clear boundary, the specification of gasoline engine oil quality is very good, still can continue to use; But if you see on the test paper is black, at the same time, there are a lot of precipitation, in this case you need oil will be replaced in time, in addition, in the process of using the oil also want to record your own life cycle, more can as far as possible in the use of oil change period, therefore, in accordance with the above method can control the oil change time, You can also save as much money as possible on oil changes.
Before replacing agricultural oil, please be sure to put the old oil in the vehicle clean and then add new oil. The oil of different brands can not be mixed. When changing oil, don't forget to replace the machine filter.