How many kilometers should the engine oil be changed during the break-in period of a new engine?
3 Answers
The engine oil should be changed at around 5,000 kilometers during the break-in period. Here is some relevant information about engine oil: 1. Functions of engine oil: The main functions of engine oil are lubrication, cleaning, and heat dissipation. In fact, engine oil is used in many parts of a vehicle, but the oil that needs to be changed every 5,000 kilometers refers to the engine oil. Most people generally use semi-synthetic or fully synthetic engine oil, while conventional engine oil is rarely used. Conventional engine oil is typically used in agricultural machinery, tricycles, and motorcycles. 2. Replacement intervals: Conventional engine oil: 5,000 kilometers; semi-synthetic engine oil: 7,500 kilometers; fully synthetic engine oil can go up to 10,000 kilometers before needing a service.
As a veteran driver with decades of experience, I emphasize the importance of changing the engine oil after the break-in period. The first few thousand kilometers are critical for a new car, as internal engine components are adapting and wearing in. For example, friction between piston rings and the crankshaft generates tiny metal particles that mix with the oil, increasing wear. Manufacturers typically recommend replacing the initial oil at around 1,000 to 1,500 kilometers to thoroughly remove these debris and protect the engine's longevity. I suggest not exceeding 1,500 kilometers—better to change it earlier at 1,000 kilometers using the high-quality oil recommended by the manufacturer. After that, maintenance becomes easier with regular oil changes every 5,000 kilometers, avoiding costly repairs by not neglecting small issues. Also, practice smooth driving habits, keeping RPMs moderate to help the engine transition smoothly to normal operation.
When I first bought my new car, I was also curious about the oil change timing during the break-in period. The salesperson said it's generally recommended to change the oil within 1,000 to 1,500 kilometers, with 1,200 kilometers being a suitable point. As a newbie, I noticed the engine ran noticeably quieter and smoother after that first oil change because the contaminants from early wear were removed. I suggest checking your vehicle's manual first to confirm the exact mileage—some brands specify 1,200 km, while others require 1,500 km. Exceeding this may damage components, so I later made it a habit to regularly check the oil condition to protect my new car investment. Also, remember to inspect whether the oil filter is replaced simultaneously during the oil change to ensure complete removal of residual contaminants.
