Can you wait 6 months between oil changes?

Regarding the question of whether the oil change interval can be extended to 6 months, a comprehensive assessment should be made based on the type of engine oil and vehicle operating conditions. For mineral oil, 6 months represents the standard maximum replacement interval due to its weaker oxidation resistance, beyond which lubrication performance will deteriorate significantly. Semi-synthetic oil can extend this period to 7-8 months, while full synthetic oil allows for a maximum interval of 1 year. Turbocharged models are advised to prioritize full synthetic oil with shortened inspection intervals, while adhering to the "whichever comes first" principle (replacement triggered by either time or mileage). Regular inspection of oil colour, viscosity and contaminants via dipstick is essential; immediate action should be taken if dark brown discoloration, reduced viscosity or metal particles are observed. For new vehicles, initial maintenance should be completed within 3,000 kilometres to eliminate metal debris from the break-in period, with subsequent servicing following the aforementioned standards.