
Motor oil can be used as fan lubricant. Whether it's for a car or an electric fan, motor oil can serve as a lubricant to reduce wear and tear. It can be used temporarily as a lubricant, but for long-term use, specialized lubricants are required. However, it's important not to add too much when using it. Motor Oil: Also known as engine oil, it lubricates the engine to reduce friction, assists in cooling, provides sealing to prevent leaks, prevents rust and corrosion, and acts as a shock absorber. It is often referred to as the "blood" of a car. Composition of Motor Oil: Motor oil consists of two main components: base oil and additives. The base oil is the primary component of the lubricant, determining its basic properties, while additives compensate for and improve the shortcomings of the base oil, imparting new characteristics. Additives are an essential part of the lubricant.

When I was younger and into cars, I once thought about using leftover motor oil to lubricate the floor fan at home, thinking it would save money and effort. I tried it, but the fan started making louder noises, squeaking, and soon the bearings became stiff, reducing the airflow. When I took it apart to check, the motor oil was too thick, and dust had stuck all over it, nearly burning out the motor. That’s when I realized motor oil is designed for high-temperature, high-pressure engines—it’s too viscous and contains too many additives for a low-load, small machine like a fan. Fan bearings need lightweight, breathable grease or silicone oil that doesn’t evaporate easily. Now, I always buy dedicated fan lubricant, and it works great—the fan lasts much longer. Don’t risk using motor oil; it clogs parts, increases friction, and wastes resources while making the fan perform poorly.

We had been using an old fan at home for several years when it started making a rattling noise. My husband suggested trying car engine oil as a lubricant. I applied some oil to the rotating shaft with a cloth, but the fan became harder to turn, emitted a strange odor when running, accumulated dust quickly requiring daily cleaning, and stopped working completely within a week. The repair technician explained that car engine oil is too viscous for small fan components - it's designed for high-temperature engines, whereas fans only need lighter lubricants like sewing machine oil or specialized fan lubricants. Since then, I've been small bottles of dedicated fan oil from hardware stores - affordable, effective, and safe for children to use. In short, using engine oil as fan lubricant is unreliable, can prematurely damage equipment, and compromise family safety.

As a DIY enthusiast, I enjoy fixing things myself. Last summer when my fan malfunctioned, I had a whimsical idea to use car engine oil for lubrication. The result was disastrous - the fan roared like a tractor after startup, with unstable RPM, and completely seized after two days of use. Upon disassembly, I found the engine oil had turned sticky, trapping dust that clogged the bearings. Car engine oil's viscosity is too high - fans require lightweight lubricants like lithium-based grease or WD-40. After switching to fan-specific oil during repairs, it worked perfectly. A valuable lesson: never use engine oil for quick fixes as it damages plastic components and causes fan overheating. Always check the fan manual or choose appropriate products to ensure proper lubrication while saving money.

From multiple experiences, motor oil is completely unsuitable as a fan lubricant. Engine oil is designed for engines, with high viscosity and additives, which actually increases resistance and wear when used on fans, causing noise to skyrocket. Ordinary household fans only require low-viscosity lubricating grease such as silicone grease. Otherwise, motor oil can accumulate dust and clog bearings, leading to excessive motor load or even burnout. I've tried it myself with poor results and time-consuming repairs. It's best to use dedicated fan lubricating oil or lightweight oil for safety and reliability. Remember: choose the right product for fan lubrication, avoid mixing, and prevent additional damage.

Our elders used to lubricate various things with motor oil, but it's not suitable for fans. I once tried applying car engine oil to an old fan. At first, it ran smoothly, but after a few days, abnormal noises appeared. Upon disassembly, I found the oil had hardened and accumulated dust, causing severe wear on the fan shaft. Motor oil is designed for high-speed engines, while fans require milder lubricants like mineral oil. Modern fans are more delicate, and using the wrong oil may cause overheating damage. The lesson is: don't skimp on small expenses—buy the proper lubricant to protect your equipment. Safety first; choose easy-to-clean products for fan lubrication.


