The Importance of Motor Oil to a Car Engine

A car engine consists of hundreds of metal components that turn and slide at high speeds. These components are consequently subjected to high pressures and temperatures, which even the hardest metal cannot endure for a long period without sustaining severe wear and tear. Motor oil enables the engine to with these extreme conditions by serving as the engine’s lubricant.

Engine oil of adequate viscosity minimizes the kinetic energy produced by the engine’s moving parts, eventually reducing friction that generates heat energy. So when a car overheats, it’s very likely that the cause is lack of sufficient and clean motor oil.

It’s not only oil’s lubricating property that prevents an engine from overheating. Even when metal surfaces are well lubricated, they still produce enough heat to reduce the engine’s overall performance when in constantly fast motion. This heat is absorbed and released by the motor oil just as how any other liquid would do, saving the engine from heating up fast.

Motor oil also serves as a conveyor of debris created by the metal component’s motion from the engine to the drain pan underneath. Such particulates can pose hazards to other components, especially if the engine is running out of motor oil. However, the coil may also trap the debris inside the system over time, and so it’s crucial to replace engine oil with a clean one regularly.


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