Question

flag question
the oil additive that helps reduce the change in the oils ability to flow as the temperature of the oil changes is a(n):
○ a. antifoaming agent.
○ b. pour point depressant.
○ c. dispersant.
○ d. viscosity index improver.
previous page
quiz navigation
oo omozoya osarenkhoe

Explanation:

A viscosity - index improver helps reduce the change in an oil's ability to flow as its temperature changes. Antifoaming agents prevent foam formation, pour - point depressants lower the temperature at which oil can be poured, and dispersants keep contaminants suspended.

Answer:

D. Viscosity index improver