It is completely normal, that the engine oil is darker when first using MATHY-M, even at not yet 10000 km.

即使在不到一万公里的时候，首次使用玛蒂m时发动机机油会变黑，也是完全正常的。

youdao

It is completely normal, that the engine oil is darker when first using MATHY-M, even at not yet 10000 km.

即使在不到一万公里的时候，首次使用玛蒂m时发动机机油会变黑，也是完全正常的。

youdao