You’re A Mechanic If You Can Pass This Essential Car Maintenance Quiz

Noor Muhammad|Auto|6 Feb 2025

Why do we use the colorful engine coolant instead of plain water?

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A mechanic working on a Buick automobile, pouring green engine coolant into a yellow funnel
Retry Correct Incorrect The colorful engine coolant is called antifreeze because it decreases the freezing point of water and prevents it from freezing in the coolant lines, which can cause them to rupture.
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HUM Images/Universal Images Group via Getty Images
HUM Images/Universal Images Group via Getty Images

Why do we use the colorful engine coolant instead of plain water?

  • It prevents rusting
  • It is better at heat dissipation
  • It doesn’t freeze as easy
  • It improves fuel efficiency
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