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Question 8254

Your vehicle's coolant can freeze in winter. To prevent this, you should...

  1. activate a pump that keeps the fluid circulating.
  2. use antifreeze coolant.
  3. turn on a thermostat installed in the circuit.
Show answer and explanation

Correct answer: use antifreeze coolant.

Coolant is distilled water mixed with antifreeze, which lowers the temperature at which the liquid freezes. Without it, the water would freeze in winter and expand, potentially cracking the engine or radiator. Before winter, check that the mixture can withstand the coldest temperatures in your area. Neither the thermostat nor the pump prevents freezing. In the image, the driver tops up the coolant while the windshield is covered in frost.

Manual VIII. Mecánica y entretenimiento simple del automóvil