Why Should Engine Oil Be Changed?

[McCharles]

Engine oil effectively protects the moving parts of an engine. Here is a detailed explanation of why car engine oil needs to be changed: 1. Lubrication: The primary function of engine oil is lubrication. It forms an oil film on the metal surfaces of the engine, reducing wear between metal parts. 2. Cleaning: It breaks down sludge and deposits generated during engine operation, keeping the engine internals clean. 3. Rust prevention: It neutralizes acidic substances produced during engine use and forms a rust and corrosion-resistant layer, preventing metal parts from rusting and corroding due to oxidation. 4. Sealing: It seals the gaps between pistons and cylinders, ensuring complete fuel combustion and improving fuel efficiency. 5. Cooling: It dissipates high temperatures generated by engine wear, protecting various engine components.

[AndresLynn]

I've been driving for over twenty years and found that engine oil is the lifeline of an engine. It lubricates all moving parts, reduces friction heat, and prevents direct metal-to-metal contact damage. After running for thousands of kilometers, the oil accumulates dust, metal shavings, and combustion residues, becoming thick and acidic, which greatly reduces its lubrication effectiveness. Not changing the oil on time can lead to engine overheating, accelerated wear, or even complete failure. I remember a decade ago when I tried to save money by delaying an oil change, the pistons seized up, costing me over three thousand in repairs—a huge loss. Now, I strictly follow the user manual, changing the oil every 5,000 to 10,000 kilometers, depending on the oil type. Synthetic oil withstands heat better and lasts longer. Regular oil changes make the car quieter, more fuel-efficient, and safer to drive. Owning a car is like raising a child—take good care of it, and it will accompany you further.

[Bentley]

I just bought a car recently and have learned a lot about maintenance. Engine oil becomes dirty, diluted, or acidic over time, reducing its lubricating effectiveness. Fresh oil can clean the engine interior and cool high-temperature components. If you forget to change it, it may clog the oil filter, increase noise, or even cause engine seizure. My friend didn't change the oil for a year, and the engine sounded like a broken drum, costing over a thousand to repair. Changing the oil is actually quite simple, costing less than two hundred, and you can check the filter at the same time. For new cars, it protects the warranty conditions; for older cars, it extends their lifespan. Developing this habit makes car care easier, and you can use an APP to remind you of regular maintenance. Drive tens of thousands of kilometers more, spend less on unnecessary repairs, and enjoy a more relaxed driving experience.

[Susan]

As someone who commutes daily, I consider changing the engine oil a necessary habit. Engine oil lubricates engine components, but after several thousand kilometers, it becomes contaminated with impurities and its performance deteriorates. Changing it helps protect the engine. Failing to change the oil can lead to increased friction, louder noises, or even component damage, resulting in expensive repairs. My car gets an oil change every 7,000 kilometers, following the manual's recommendations, ensuring the engine runs smoothly. In short, regular maintenance makes the car more durable, saving both money and time.