What happens if a car runs with insufficient engine oil?

1 Answers
LeLeilani
07/25/25 1:37am
Insufficient engine oil can lead to the following issues: 1. Poor lubrication of engine friction surfaces: This may result in abnormal vibrations and reduced power output. In severe cases, it could even cause engine bearing seizure. 2. Engine bearing seizure (crankshaft bearing and bearing bush wear due to poor lubrication): This manifests as abnormal engine vibrations leading to stalling, after which the engine may fail to restart. Additional details: 1. Engine oil: A substance enhanced with additives in base oil, primarily containing anti-wear agents, detergents, dispersants, and multi-grade viscosity index improvers. 2. Functions of engine oil: Primarily used for lubricating internal combustion engines, its main purposes are reducing friction/wear between moving parts and removing sludge/varnish from the engine.
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