Can Engine Oil Be Used as Lubricating Oil?

[OJohn]

Engine oil is a type of lubricating oil, which is a professional term encompassing various categories and grades, such as gasoline engine lubricating oil, diesel engine lubricating oil, and transmission lubricating oil. Below is a detailed introduction about it: Introduction One: Lubricating oil is a liquid lubricant used in various types of machinery to reduce friction, maintain mechanical equipment, and protect processed parts. It primarily serves functions such as lubrication, cooling, rust prevention, cleaning, sealing, and cushioning. Introduction Two: Different categories of engine oil cannot be used interchangeably, as doing so may adversely affect the engine. For example, gasoline engine oil cannot be used in diesel engines.

[MacKaden]

Having driven cars for many years, I know engine oil is the engine's exclusive treasure—designed for high temperatures and speeds, with high viscosity and cleaning additives. If used on door locks or bicycle chains, it attracts dust, thickens, and hardens, potentially jamming the equipment and causing malfunctions. I once saw a friend use it to lubricate garden cart wheels, only for the bearings to rust and fail. Specialized lubricants like WD-40 are lighter, rust-resistant, and better suited for various scenarios. Don’t cut corners by substituting engine oil, as it may shorten equipment lifespan and waste time and money. Always prioritize the right lubricant for the job—matching the application ensures efficiency.

[LeJaxon]

When I DIY repairs on cars or furniture, I once used old engine oil to lubricate my garage door tracks. At first, it worked smoothly, but soon it got covered in dust, became sticky, and made annoying squeaking noises when closing the door. Switching to general-purpose grease made it quiet and long-lasting. Engine oil is too viscous—great for engines but not for household items. It lacks dust-proofing and can even corrode plastic parts. My experience taught me that every tool has its ideal lubricant. Always check the intended use before selecting oil to avoid turning a small job into a major repair. Keep it simple: using the right oil saves hassle and boosts efficiency.

[Stephen]

As a cycling enthusiast, engine oil cannot replace bicycle chain lubricant. Engine oil is too thick and will attract dust and sand when used on chains, accelerating wear and even causing chain slippage accidents. I once tried using engine oil as an emergency solution, but it actually made the chain rust faster. Dedicated products like chain lubricant are thinner and more rust-resistant, providing better protection for components and ensuring safety. Engine oil contains additives that are unsuitable for other mechanical systems. Choosing the right lubricant is the first step to keeping your equipment running smoothly and safely.