1. Lubrication: The most common use of lubricating oils is for reducing the friction between moving parts in machinery. Lubricating oils form a thin layer between the metal surfaces, reducing wear and tear and preventing them from rubbing against each other, which leads to damage and failure.
2. Coolant: Lubricating oils are also used as coolants for machinery. As the moving parts in equipment heat up, the lubricating oils help dissipate the heat, allowing the machinery to operate at a lower temperature. This helps prevent overheating and damage to the equipment.
Give two uses of lubricating oils as a distillate of the petroleum
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