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How Long Can an Engine Run Without Oil?

1 Answers

LaKate

07/29/25 9:17am

If a car idles without oil, it can run for about half an hour. If driven without oil, it can last for a maximum of 15-20 minutes. Prolonged operation without oil will cause irreversible damage to the engine and may even lead to complete engine failure. Relevant details are as follows: 1. Due to the high-speed operation of the car engine, the friction between the internal pistons and other metal components can reach working temperatures of 400°C to 600°C. Without oil lubrication, the dry friction between parts, combined with ineffective cooling, will cause the engine to experience issues like bearing seizure or cylinder scoring within minutes due to excessive heat. 2. Always monitor the coolant temperature gauge while driving, ensuring it does not exceed 95°C. In special circumstances, lifting the engine hood can enhance air convection for better cooling and heat dissipation.

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