What is the purpose of placing a magnet on the engine?

2 Answers
StJoanna
09/01/25 8:41am
Placing a magnet on the engine can rely on the magnetic force to adsorb metal impurities generated by the engine. Here are the relevant details about placing a magnet on the engine: 1. The function of placing a magnet on the engine: Placing a magnet on the oil filter aims to use the magnetic force to adsorb metal impurities produced by the engine, preventing debris and oil from flowing back into the engine. When the engine oil is clean, it can help increase power, reduce fuel consumption, and protect the engine. 2. Precautions: For this type of oil filter strong magnet, it is made of specialized high-temperature resistant magnets for engines. When placing it, pay attention to some details. For example, when placing this strip-shaped strong magnet, it must be placed around the oil filter and not at the bottom of the oil filter to avoid affecting the normal oil supply of the filter.
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McAva
09/14/25 4:21am
As a seasoned driver with ten years of experience, I often place magnets on the engine to capture iron particles in the oil. When the engine runs, friction between parts generates metal particles. If left circulating, these particles can scratch cylinders or bearings, shortening the engine's lifespan. Magnets are cheap and easy to install. During regular oil changes, I check the debris they've collected, and cleaning them off makes the engine run smoother and quieter. This method has saved me a lot on repairs, especially since my car is a used one that frequently travels on mountain roads, significantly reducing wear and tear. I recommend beginners try it—installation takes just minutes, attaching it near the oil pan or filter. A quick maintenance tip: avoid overly strong magnets to prevent interference with electronic components—safety first.
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