How Often Should Motor Vehicle Engine Oil Be Changed?
3 Answers
Generally, it is recommended to change the oil every 5,000 kilometers, but the specific interval depends on the vehicle's usage conditions. Below are relevant details: 1. Oil Grade Classification: The number before "W" represents the oil's flow performance at low temperatures. A smaller number indicates better cold-start performance. The number after "W" indicates the oil's stability at high temperatures (i.e., its resistance to thinning). A larger number signifies better stability. 2. Considerations: When selecting engine oil, pay attention not only to the quality grade but also to the viscosity grade. First, choose based on performance grade; then, select the viscosity grade according to temperature and load conditions.
I've been driving this SUV for three years, and changing the engine oil is something you shouldn't take lightly. Generally, it should be checked and replaced every 5,000 to 8,000 kilometers, or at least every six months—whichever comes first. This is because the oil continuously works inside the engine, and friction-generated heat can cause it to degrade, reducing its cleaning effectiveness. I use synthetic oil, which is more durable and can last up to 10,000 kilometers. However, if you often drive in stop-and-go city traffic where oil temperatures rise quickly and consumption increases, you should change it earlier, around 6,000 kilometers. Don’t forget to replace the oil filter at the same time; otherwise, the new oil won’t do its job properly. In winter, when temperatures drop, the oil thickens, making cold starts slower and potentially damaging the engine, so I always change it before winter sets in. Regular maintenance not only saves money but also keeps the car running smoothly, making every drive more enjoyable and avoiding the headache of breaking down midway. Remember to check your owner’s manual—different models have slightly different requirements. Don’t blindly follow online rumors; safety comes first!
Having driven long distances for over a decade, I deeply understand the importance of oil changes. The standard recommendation is every six months or 5,000 kilometers, but it varies in practice: for instance, using mineral oil like I do, short-distance driving requires changes every 4,000 kilometers, otherwise deteriorating oil quality accelerates engine wear. Each time I change the oil, I check the dipstick—if it's black or has impurities, immediate action is needed. The filter should also be replaced simultaneously to save money and hassle. In high summer temperatures or dusty environments, oil oxidizes faster, requiring more frequent maintenance. Making it a habit means fewer car troubles and more peace of mind on long trips; otherwise, breakdowns midway can be costly and time-consuming to repair.
