How Long Can the Factory-Installed Engine Oil Last?

[AmyMarie]

Different types of engine oil have varying replacement cycles, typically ranging from 8 months to 1 year or 5,000 to 10,000 kilometers. Below is an introduction to engine oil: 1. Definition: It is the lubricating oil used by the engine. 2. Functions: Engine oil lubricates and reduces friction, aids in cooling and temperature reduction, provides sealing to prevent leaks, prevents rust and corrosion, and offers shock absorption and cushioning for the engine. 3. Composition: Engine oil is often referred to as the "blood" of a car. Base oil is the main component of lubricating oil, determining its fundamental properties. Additives can compensate for and improve the shortcomings of the base oil, providing certain new properties, making them an essential part of lubricating oil.

[KiaraRose]

When I first bought my new car, I specifically asked the technician at the 4S dealership. The factory-installed engine oil in new cars is usually synthetic oil, which is of quite good quality. Under normal driving conditions, it can last about 5,000 to 7,500 kilometers or roughly six months before needing replacement. The exact interval depends on your driving habits and environment. For example, since I live in the city and deal with daily traffic jams during my commute, the engine often runs at low RPMs, causing the oil to get dirty faster. I was advised to change it during the first maintenance for safety. If you frequently drive on highways or in good road conditions, you might be able to stretch it to the manual's recommended interval. Don't just focus on the mileage—even if you haven't driven much, you should still check it when the time comes, as oil degrades and oxidizes over time, affecting lubrication. Once, I forgot to change the oil on time in a new car, and only realized it when the engine started sounding rougher. It ended up costing me extra in repairs—not worth it at all. In short, regular maintenance is key; don't skimp on it.

[Sherry]

As someone who frequently focuses on car maintenance, I believe the lifespan of the factory-installed oil in a new car depends on several key factors: engine type, driving conditions, and oil quality. The standard oil that comes with new cars is usually high-performance synthetic, designed to last until the first service, typically between 5,000 to 10,000 kilometers or 6 to 12 months. However, don't rely entirely on that. If you often drive short distances, such as just a few kilometers daily to drop off kids at school, frequent oil temperature fluctuations can accelerate degradation. Or if you frequently drive in dusty areas, contaminants can easily mix into the oil. I recommend a simple check after the first 1,000 kilometers—inspect the dipstick color; if it darkens or shows particles, change the oil sooner. Also, pay attention to temperature: frequent cold starts in winter cause significant viscosity changes, while high summer temperatures can evaporate some oil components. In short, don't exceed the manual's recommendations—safety first.

[ColeDella]

My first car was a brand-new model, and the salesperson emphasized that the factory-fill oil could last for 5,000 kilometers or six months under normal driving conditions. However, the actual lifespan depends on your driving habits: if you frequently floor the accelerator or haul heavy loads, the oil will degrade faster and may not last the recommended interval. Environmental factors also matter—urban stop-and-go traffic or dusty rural roads can shorten its service life. I once had the oil warning light come on after just three months during a long trip, prompting an immediate oil change to prevent engine damage. Regularly consulting the owner's manual is always a wise practice.