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Quiz: Engine Oil Knowledge [8]

Pull Oil Dipstick 1200px1 Quiz: Engine Oil Knowledge [8]

Test your knowledge about engine oil with this quiz. Explore various aspects of engine maintenance, oil types, and common misconceptions. Let’s see how well you understand the slippery subject of engine oil!

  • Question of

    1. All automotive oil comes from petroleum that’s been refined.

    • True.
    • False.

    Correct Wrong

    Traditional oil is made from crude oil that has been refined and thinned. Synthetic oil also begins as a byproduct of crude oil, but its petroleum components are chemically modified.

  • Question of

    2. Which of these is most important when choosing the weight of oil to use?

    • Type of driving (highway versus stop-and-go).
    • Age of the engine.
    • Environmental temperatures.

    Correct Wrong

    Because motor oil thins as it heats and thickens as it cools, it’s rated for two temperatures. The first number (followed by a “W,” for “winter”) is the viscosity at 0°F; the second is the viscosity at 212°F. For maximum engine performance, follow the recommendations for viscosity provided in your vehicle owner’s manual.

  • Question of

    3. Having to regularly add a quart of oil to your car is normal and does not signal a problem.

    • True.
    • False.

    Correct Wrong

    Check your engine oil level once a month. It’s normal for cars to burn a little oil as they age toward 100,000 miles, but if you’re adding a quart or more between oil changes, you should have your vehicle checked.

  • Question of

    4. Which of the following affects how often you should change your oil?

    • Driving in extreme temperatures.
    • Driving in dusty conditions.
    • Pulling heavy loads.
    • All of the above.

    Correct Wrong

    Consult your owner’s manual for a schedule of when to have the oil changed. If the engine is performing under harsh conditions, it may need more frequent service.

  • Question of

    5. At what mileage should you start using a high-mileage oil in your engine?

    • 75,000.
    • 150,000.
    • 200,000.

    Correct Wrong

    Once a vehicle reaches 75,000 miles, the engine begins to loosen, which can cause oil leaks and rattling noises. High-mileage engine oils have ingredients like detergents, conditioners, seal swells, and friction additives to help care for older engines.

  • Question of

    6. What are the advantages of synthetic oil versus conventional oil?

    • It flows easier in cold weather.
    • It is more resistant to breakdown.
    • It yields increased horsepower and torque.
    • All of the above.

    Correct Wrong

    Among the advantages of synthetic oil are better low- and high-temperature viscosity performance, increased stability, and less initial drag on the engine for improved horsepower and torque.

  • Question of

    7. Does oil need to be changed when it has a dark color?

    • Definitely.
    • Not necessarily.
    • Definitely not.

    Correct Wrong

    New engine oil is amber in color, but it will darken with each heat cycle. Contaminants also can cause the oil to darken, but don’t rely on the color to know when to change it; follow the maintenance schedule in your vehicle owner’s manual instead.

  • Question of

    8. Can you switch between conventional and synthetic oils?

    • No, conventional and synthetic oils are not compatible.
    • Yes, for most cars there is no issue, but older engines may require conventional oil.
    • Yes, but you can switch only from conventional to synthetic oil.

    Correct Wrong

    The seals, gaskets, and plugs on some older engines might not handle the chemicals in synthetic oil very well, which could lead to oil leaks.

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