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What Components Make Up the Engine Lubrication System?

3 Answers
DelMax
09/04/25 8:22am
The engine lubrication system consists of components such as the oil pump and pressure relief valve. Its primary function is to continuously supply lubricating oil to the friction surfaces of various parts, thereby reducing friction and wear. Although the lubrication system does not participate in the engine's energy conversion process, it ensures the engine operates normally and extends its service life. The basic tasks of the lubrication system are: 1. Continuously delivering clean engine oil to the friction surfaces of engine components to reduce friction resistance and wear; 2. The flowing oil also carries away heat generated by friction and metal particles from wear, preventing component temperature rise, maintaining proper clearance, and avoiding abrasive wear; 3. Due to the viscosity and adsorption properties of lubricating oil, it forms an oil film that provides sealing effects.
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Beau
09/17/25 2:24am
When it comes to the engine lubrication system, based on my years of experience in car repair, I consider it the guardian angel of the engine, primarily composed of several key components. First is the oil pan, located at the bottom of the engine, acting like a reservoir for storing engine oil. Next is the oil pump, responsible for pumping oil to all corners, ensuring thorough lubrication of engine parts. Then there's the oil filter, which removes contaminants to prevent clogging. The oil passages run through the engine, delivering oil like blood vessels. Additionally, the oil pressure sensor monitors oil pressure; too low pressure can easily cause part wear. Don't forget the oil cooler, which helps dissipate heat in some high-performance vehicles. I remember one time when a car owner delayed the oil change interval, leading to a clogged filter and engine overheating, requiring a major overhaul. So, I recommend checking the oil level every 5,000 kilometers and changing the oil and filter regularly to extend the engine's lifespan by several years.
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MacMarley
10/31/25 2:53am
When I bought my first car, I was curious about how the lubrication system worked. After checking some books, I learned it consists of several key components. The oil pan is located at the bottom of the engine and serves as the reservoir for engine oil, functioning somewhat like the heart of the car's oil supply. The oil pump is responsible for drawing oil and delivering it through pipelines to friction-prone areas like the crankshaft and pistons. The oil filter plays a crucial role by capturing metal particles to prevent engine damage. There's also an oil pressure sensor that continuously monitors whether the oil pressure is normal. If any of these components fail—for example, if the oil pump breaks—the engine will suffer from insufficient lubrication, leading to severe wear. Now, I personally check the oil level every quarter, observing if the dipstick color has darkened. Experts recommend not exceeding an oil change interval of 8,000 kilometers to avoid costly repairs, which is both economical and reassuring.
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