要了解，不同環境不同駕駛習慣和需求，甚至不同的機油品牌和種類都讓這個數據具有很多的不確定性。在這里教大家兩個方法，讓你自己就可以準確判斷機油是否要更換。下面濟南寶馬汽車專修人員為您分析：

It is important to understand that different driving habits and needs in different environments, as well as different oil brands and types, all contribute to many uncertainties in this data. Here are two methods to teach you, so that you can accurately determine whether the oil needs to be replaced. The following is an analysis by Jinan BMW auto repair personnel:

1、通過機油試紙來觀察

1. Observe with oil test paper

通過機油尺中取出少量機油滴在機油試紙上，然后靜止放置一個晚上，等待上面的機油在試紙上完全擴散。如果擴散的機油油環、沉淀環、擴散環之間的邊緣越硬，則機油性能衰減就越厲害。

Take a small amount of oil from the oil dipstick and drop it onto the oil test paper, then stand still for one night, waiting for the oil on the test paper to completely diffuse. If the edges between the diffused oil ring, precipitation ring, and diffusion ring become harder, the performance of the oil will deteriorate more severely.

2、根據換機油后的駕駛感覺來判斷

2. Judging by the driving feeling after changing the oil

機油的性能都有“保質期”，在某一時期當你覺得動力“很肉”，加速緩慢時，這就說明機油的“保質期”到了，要去更換機油了。

The performance of engine oil has a "shelf life". At some point, when you feel that the power is "meaty" and the acceleration is slow, this indicates that the "shelf life" of the engine oil has expired and you need to change the engine oil.

另外當你更換了機油后，感覺到有明顯的動力提升，那說明上次更換機油的里程有點太長了。下次可以適當提前500公里，這樣1-2次你就可以找到一個比較準確的更換機油的里程。

In addition, when you change the oil, you feel a significant power increase, which indicates that the mileage for the last oil change was a bit too long. Next time, you can appropriately advance the mileage by 500 kilometers, so that you can find a more accurate mileage for changing the oil 1-2 times.

一般情況下，只需按照機油或者保養手冊上建議的保養里程進行更換就已足夠。在惡劣駕駛環境下，則養成定期觀察機油情況的習慣，發現有變質傾向則及時更換之。

Generally, it is sufficient to replace the oil or the recommended maintenance mileage in the maintenance manual. In harsh driving environments, develop the habit of regularly observing the condition of the oil, and promptly replace it if there is a tendency to deteriorate.

還要提醒一下大家的是，更換機油的同時好把機油濾也一并換掉。機油濾的作用是攔截下機油中的雜質，如果不及時更換，上面累積的雜質就會造成堵塞。輕則會造成機油壓力不足，機械部件潤滑不好，嚴重的還會造成發動機過度磨損。還有什么問題就來我們網站http://www.junwumy.com咨詢！

Also, I would like to remind everyone that when you change the engine oil, you should also replace the engine oil filter. The function of the engine oil filter is to intercept impurities in the lower engine oil. If it is not replaced in a timely manner, the accumulated impurities on it will cause blockage. If it is light, it will cause insufficient oil pressure, poor lubrication of mechanical components, and even excessive engine wear. If you have any further questions, please come to our website http://www.junwumy.com consulting service