Can Engine Oil Be Stored in the Car?
2 Answers
Engine oil can be stored in the car. Lubricating Properties of Engine Oil: Under various conditions, the ability of engine oil to reduce friction, slow down wear, and prevent metal sintering is called the lubricating property of the engine. The viscosity of engine oil is an important indicator for evaluating its lubricating properties. Low-Temperature Operability of Engine Oil: The performance of engine oil that ensures easy starting and reliable oil supply in low-temperature conditions is called the low-temperature operability of engine oil. Viscosity-Temperature Characteristics of Engine Oil: The property of lubricating oil that changes viscosity with temperature fluctuations is called viscosity-temperature characteristics. Good viscosity-temperature characteristics mean that the oil's viscosity changes minimally with temperature. The effect of temperature on oil viscosity: as temperature increases, viscosity decreases; as temperature decreases, viscosity increases. Adding viscosity index improvers to the base oil can enhance the viscosity-temperature characteristics of the oil.
As a seasoned driver for many years, I believe storing engine oil in the car is acceptable, but extra caution must be taken regarding safety risks. Engine oil is a flammable liquid, and placing it near high-temperature areas like the engine or in direct sunlight can easily lead to fires or leakage accidents. My personal practice is to only use sealed plastic containers or original bottles, securely placed in a corner of the trunk to prevent spills during vehicle jolts. Another issue is temperature fluctuations—engine oil may thin out in hot summer weather and thicken in cold winter conditions, reducing its lubrication effectiveness. Long-term storage can also lead to oxidation and degradation, so I only carry an emergency supply and replace it with fresh oil every year or two, avoiding expired oil. Once, during a long-distance drive, I discovered oil leaking onto the carpet, which was troublesome to clean and environmentally harmful, making me more cautious since then. In summary, it’s convenient for emergencies, but regular checks on storage conditions are essential to ensure driving safety comes first.
