Engine Oil Knowledge Quiz

What is the primary function of engine oil?

• Increase engine sound

• Cool cabin air

• Lubricate moving parts

• Clean the fuel tank

Engine oil helps reduce:

• Brake noise

• Friction

• Battery usage

• Wind resistance

In a 5W-30 oil, what does the “W” stand for?

• Weight

• Warm start

• Water

• Winter

Oil viscosity refers to:

• Oil color

• Oil’s freezing point

• Oil’s thickness and flow

• Fuel content

What is a key benefit of synthetic oil?

• Increases engine noise

• Shortens oil change intervals

• Better protection in extreme temperatures

• Adds horsepower

Oil detergents are used to:

• Thicken the oil

• Remove dirt and sludge

• Reduce engine noise

• Prevent leaks

Which of the following is a common engine oil additive?

• Glue

• Fragrance

• Viscosity modifier

• Antifreeze

A sign that you need an oil change is:

• The engine is cold

• Oil appears clear

• Oil change light is on

• Full gas tank

What driving condition causes oil to degrade faster?

• Smooth highway driving

• Parking in shade

• Stop-and-go traffic

• Long vacations

Why are oil changes important?

• To improve tire pressure

• To reduce coolant leaks

• To maintain lubrication

• To adjust suspension