Why is oil so important to your vehicle's engine?

Question

A. To lubricate the moving parts
B. To shine up your car
C. To mix with gasoline to improve combustion
D. To cool the engine

Answer 1

The correct answer is A. To lubricate the moving parts.

Oil plays a crucial role in reducing friction between the moving parts of an engine, which helps prevent wear and tear and ensures smooth operation. While oil can also assist in cooling the engine and has some other functions, its primary role is lubrication.