Is There a Difference Between Lubricant and Lubricating Oil?
2 Answers
Lubricating oil and lubricant are different, with the specific differences as follows: 1. Different classifications. Lubricating oil: Divided into paraffinic, intermediate, and naphthenic base oils. Lubricant: Divided into liquid oil-based lubricating oils, semi-solid grease-like lubricants, and solid lubricants. 2. Different functions. Lubricating oil: Primarily serves functions such as lubrication, auxiliary cooling, rust prevention, cleaning, sealing, and buffering. Lubricant: Used to reduce the frictional resistance of friction pairs and slow down their wear. 3. Different characteristics. Lubricating oil: Basic properties include general physical and chemical properties, special physical and chemical properties, and simulated bench tests. Lubricant: In mechanical equipment, lubricants are mostly distributed to various parts requiring lubrication through the lubrication system.
As a veteran technician with over a decade of experience, I can confirm there's a clear distinction between lubricants and lubricating oils. Lubricant is an umbrella term covering various forms like liquid oils, semi-solid greases, or sprays; lubricating oil specifically refers to the liquid type, such as engine oil or transmission fluid. In auto repair, I often see car owners confuse them—for instance, adding grease to an engine, which can clog oil passages causing overheating damage. Proper selection is crucial: lubricating oils are for components requiring fluid lubrication like pistons, while grease suits points needing long-term sealing like bearings. Misuse may lead to increased oil consumption or premature failure, so I always remind customers to consult their owner's manual for appropriate products and regularly check oil levels to avoid major overhauls.
