Question 1: DIY Car Maintenance Essentials Quiz

Question 1 of 20

0% Correct

What is the primary function of engine oil in a vehicle's internal combustion engine?

Answer Explanation

Engine oil's main role is lubrication. It forms a thin film between metal surfaces, preventing direct contact and thus reducing friction and wear. While it also helps with cooling and cleaning, lubrication is its primary purpose.

A. To provide a seal between the piston rings and cylinder walls.

24%

B. To cool the engine components by absorbing heat.

26%

C. To reduce friction and wear between moving parts.

18%

D. To clean carbon deposits from the cylinders.

32%

What is the primary function of engine oil in a vehicle's internal combustion engine?

Answer Explanation

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