Have you heard of oil cap or drain plug not tightened?

你曾听说过机油盖或泄油螺丝没栓紧的事吗？

youdao

Undo the oil drain plug on the oil container and drain off the oil.

拧下机油箱上的放油塞，并排放机油。

youdao

Undo the oil drain plug on the oil container and drain off the oil.

拧下机油箱上的放油塞，并排放机油。

youdao