Does Engine Lubricating Oil Have an Expiration Date?
1 Answers
Engine lubricating oil does not have an expiration date. As long as it is stored properly, it generally does not affect usage within three years. Storage conditions for lubricating oil: 1. Excessively low or high temperatures can impact the quality of lubricating oil, so it should not be stored in overly hot or cold environments for extended periods; 2. If lubricating oil is improperly stored and becomes contaminated with dust or water, it may appear cloudy or develop sediment, in which case it should be discontinued immediately. Functions of engine lubricating oil: 1. Corrosion and rust prevention, requiring protection of friction surfaces from oil deterioration or external contaminants; 2. Friction reduction and wear resistance, lowering frictional resistance to conserve energy, reducing wear to extend mechanical lifespan, and improving economic efficiency, among other benefits.