What does it mean to add small oil to a car?
1 Answers
Small oil mostly comes from underground refineries, or is a mixture of oil from regular channels and inferior oil, and its quality cannot be guaranteed. The following is the relevant introduction: 1. Gasoline: Gasoline is a volatile and flammable liquid hydrocarbon mixture distilled and cracked from petroleum, which can be used as fuel. It appears as a transparent liquid, is flammable, and has a distillation range of 30°C to 220°C. 2. Principle of thermal expansion and contraction: Thermal expansion and contraction refer to the property of objects expanding when heated and contracting when cooled. Since the movement of particles (atoms) inside an object changes with temperature, when the temperature rises, the vibration amplitude of the particles increases, causing the object to expand; but when the temperature drops, the vibration amplitude of the particles decreases, causing the object to contract.