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。

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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？

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Keep a check on it, and put the drain plug back on when the oil has finished draining.

继续检查，并把排水管堵塞时，回到石油已完成排水。

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You can damage your engine if you're not careful to use the right oil filter and replace the oil-drain plug without stripping its threads, or forget a leak-stopping gasket.

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