Two technicians are discussing oil filters. Technician A says that the oil will remain perfectly clean if just the oil filter is changed regularly. Technician B says that oil filters can filter particles smaller than the human eye can see. Which technician is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because oil filters are designed to remove particles from the oil that are too small to be seen by the naked eye, ensuring the engine oil remains clean and effective for lubrication. Technician A is incorrect because simply changing the oil filter without changing the oil itself will not keep the oil "perfectly clean," as the oil can still degrade and become contaminated over time.

Two Technicians Are Discussing Oil Filters