What are the main functions of the lubrication system?
3 Answers
The main function of the lubrication system is to continuously deliver an adequate amount of clean oil at an appropriate temperature to the friction surfaces of all transmission components during engine operation, forming an oil film with lubricating properties. This not only effectively reduces friction between parts but also minimizes power loss, ensuring the engine's service life while maintaining optimal working conditions. The lubrication system refers to a series of oil supply, discharge, and auxiliary devices that deliver lubricants to lubrication points. It can be categorized into five types: circulating lubrication system, centralized lubrication system, spray lubrication system, immersion and splash lubrication system, and total loss lubrication system for oil and grease.
I think the primary role of the lubrication system is first to reduce friction between internal engine components, ensuring smoother operation and minimizing excessive wear. Secondly, it helps with heat dissipation—engines generate high temperatures when running, and the lubricating oil assists in carrying away heat to prevent parts from overheating and deforming. Thirdly, it has a cleaning function, as the oil can trap and transport metal particles, carbon deposits, and other debris, keeping the internals clean. Fourth, it also provides a sealing function, helping piston rings adhere tightly to the cylinder walls to maintain cylinder pressure and improve combustion efficiency. Regular oil changes are crucial. If delayed too long, the oil degrades and becomes contaminated, increasing friction and heat buildup, which could potentially lead to severe engine damage and costly repairs. From my experience, neglecting lubrication maintenance can result in sluggish acceleration and a sharp rise in fuel consumption, especially for high-mileage vehicles, making frequent oil condition checks essential.
As a daily driver, the lubrication system makes me feel that it keeps the engine running quieter and with less effort. Its main function is to reduce friction, with an oil film separating those rotating parts, minimizing sliding friction and making the car much smoother. It also helps cool things down—during long summer drives, without good oil, the engine quickly becomes scorching hot, and performance drops immediately. In terms of cleaning, the lubricant removes internal debris to prevent jamming, which directly affects how smoothly the car starts. I’ve noticed that when the oil is fresh, the car runs better and is more fuel-efficient. Once, after forgetting to change the oil, the car became noisy and struggled when accelerating. I recommend fellow drivers perform regular maintenance and use high-quality engine oil to extend the car’s lifespan.
