BBA愛漏、燒油是普世常態，並非天朝專利。廠家說是被設計的，可能與工況嚴酷有關。google：

 

Is it normal for a Audi to burn oil?

Audi, BMW, and Subaru stick firmly to the statement that oil consumption is a normal part of a car's operation. Subaru considers a quart burned every 1,000 to 1,200 miles to be acceptable. Certain Audi and BMW cars' standards state that a quart burned every 600 to 700 miles is reasonable.

Is it normal for a BMW to burn oil?

So, do BMWs burn oil? BMWs do burn oil more quickly than most other cars, but this is a normal part of the car's function according to the German manufacturer. BMWs can burn up to one quart every 750 miles, and even more if it's a high-performance model.

__________________

按照“劉團長” 的說法，全合成有清潔劑等成分，5K換可以減少積碳，油泥，減少活塞環卡死，避免拉缸...

所有跟帖： 

• 一般油也有清潔劑,大部分人其實用不到全合成的好處,turbo除外。每5K用普通油一樣很好 -khyang86- ♂ (0 bytes) () 03/17/2022 postreply 18:34:31