New York Driver License (DMV) Written Practice Test

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Ace your New York DMV written test! Prepare for the exam by practicing hundreds of multiple-choice questions covering traffic laws and road signs. Boost your knowledge, gain confidence, and increase your chances of passing the test on your first try.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What type of oil is recommended for use in a gasoline engine?

Vegetable oil
Kerosene
Motor oil
Mineral oil

The correct answer is: Motor oil

To properly lubricate and protect a gasoline engine, it is recommended to use motor oil, not vegetable oil or kerosene. Vegetable oil is not designed for engine use and may lead to engine damage. Kerosene is also not suitable for engine use as it is too thin and not able to provide sufficient protection. Mineral oil, while similar to motor oil, is not specifically formulated for use in gasoline engines and may not provide adequate performance. Motor oil is specifically designed and tested for use in gasoline engines, making it the recommended type of oil.