Engine oil

Engine oil not only reduces friction inside the engine, but also performs five functions that enable the engine to operate normally throughout its usage period.
These five functions are: (1) Perform a cleaning function that keeps the inside of the engine clean, (2) Provide lubrication to prevent friction between sliding parts, (3) Provide sealing to improve compression performance by increasing the airtightness of the piston rings, (4) Protect the inside of the engine from rust, and (5) Absorb heat inside the engine and provide cooling effects to prevent the overheating of important components.
Although engine oils are either mineral oils or synthetic oils, synthetic oils provide the most advantages.

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