What is the primary function of engine coolant antifreeze liquid (antifriz)?
Answer and explanation
Correct answer: D. Prevents freezing in winter, prevents boiling in summer, and inhibits corrosion
- Step 1: Functions of modern engine coolant. Step 2. Antifreeze (glycol mixture) lowers freezing point below -35°C, raises boiling point above 105°C, and prevents internal engine corrosion. Answer: Prevents freezing in winter, prevents boiling in summer, and inhibits corrosion. Why not the others: Coolant is separate from fuel; transmission uses dedicated gear oil; washer fluid is separate.
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