Is it necessary to install engine insulation cotton?

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Engine insulation cotton, also known as engine heat insulation cotton, is necessary to install. The heat from the engine transfers to the hood, causing it to become hot. If there is no heat insulation and noise reduction cotton on the inner side of the hood, the heat will be more noticeable. Engine insulation cotton protects the paint on the hood surface: The insulation cotton is quite effective in isolating temperature. Its presence can, to some extent, protect the paint on the hood surface from rapid aging. After long-distance driving, the temperature inside the engine compartment becomes very high, and prolonged exposure to high temperatures can cause the paint on the hood surface to age and crack quickly. As a result, the paint on older cars often ages and loses its luster first on the hood surface, while the paint on other areas remains relatively better. Engine insulation cotton keeps the engine compartment warm: The insulation cotton helps maintain the temperature inside the engine compartment, preventing it from dropping too quickly. This is particularly noticeable in winter. With insulation cotton, even in cold weather, the temperature inside the engine compartment won't drop sharply, thereby reducing the damage to the engine when restarting it shortly after shutdown.