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Which risk increases when elevated temperatures break intermolecular forces in lubricating oil?

A)Increased engine knocking and pre-ignition
B)Elevated viscosity reduces pump efficiency
C)Accelerated corrosion of engine components
D)Coolant pump cavitation and overheating

💡 Explanation

Accelerated corrosion occurs because elevated temperatures induce thermal degradation, weakening the Van der Waals forces that maintain the oil's protective molecular structure; therefore oxidation of engine parts increases, rather than viscosity changes or abnormal combusion conditions because of direct breakdown.

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