How Many Kilometers Should You Change Your Car's Engine Oil?

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Car engine oil change intervals are as follows: 1. Mineral oil can be changed every 5,000 kilometers or 6 months; 2. Semi-synthetic oil can be changed every 7,500 kilometers or within 6 months; 3. Fully synthetic oil can be changed every 10,000 kilometers or 12 months. Changing oil too early will cause unnecessary waste, while extending the change interval will lead to early engine wear and increased carbon deposits. The oil will also oxidize and lose effectiveness over time. For new cars, it's recommended to change the oil at around 2,500 kilometers to better remove metal debris generated during the engine break-in period. Vehicles with low mileage can change oil once a year, provided synthetic oil is used. For vehicles frequently driven or mostly used in low-temperature conditions, it's advisable to change the oil and oil filter approximately every 5,000 to 7,000 kilometers.