How Often Should a Private Car Change Its Engine Oil?

[BrookeDella]

Private car engine oil change intervals vary depending on the type of oil: 1. Conventional oil should be changed every 3,500 to 4,000 kilometers; 2. Semi-synthetic oil should be changed every 5,500 to 6,000 kilometers; 3. Full-synthetic oil should be changed every 7,500 to 8,000 kilometers. Precautions for changing engine oil in private cars include: 1. Perform the change when the engine is warm to ensure the old oil is drained as thoroughly as possible; 2. Add oil and ensure the amount is appropriate; 3. After adding oil, start the engine to check for any leaks, and run the engine for 3 minutes to confirm the oil level reaches the normal mark.