Which outcome occurs when a diesel engine turbocharger lacks adequate lubrication at high RPM?

💡 Explanation

When turbocharger lubrication fails at high RPM, frictional heat rapidly increases leading to thermal expansion until seizure, because the oil film normally prevents metal-on-metal contact. Therefore shaft seizure and turbine failure result, rather than surge, increased emissions, or fuel fouling, which depend on different factors.

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