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 that the human eye can see. Which technician is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

C. Both technician A and technician B are correct

Explanation

Engine performs at its best with clean oil. That's why oil filters work to sift out particles (some so small that humans can't see ) to keep contaminants out of the oil. Dirty or clogged oil filters allow contaminants to sail straight to the engine where they can cause damage as well as affect fuel economy.

Over time If the oil filter is changed regularly it will filter perfectly clean oil,