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What does long oil change interval mean?

1 Answers

SanEvangeline

07/30/25 3:59am

Long oil change interval refers to extending the period between oil changes. Specifically, it encompasses three technical aspects: first, engine development and manufacturing; second, oil quality; and third, oil filtration efficiency. Long oil change interval is currently a term used by automakers to highlight and demonstrate the comprehensive advantages of their vehicles. Engine cylinder internal purification cycle is one of the core areas of current engine technology. Maximizing complete combustion provides a breakthrough direction for long oil change intervals. Improved combustion conditions result in less formation of carbon deposits and impurities, thereby reducing contamination of the engine oil and keeping it in optimal condition, ultimately extending the oil change interval. The improvement in oil quality and service life is also a key focus of long oil change intervals. As oil quality continues to advance, it offers broader adaptability or specificity. For example, some oils now incorporate alkaline substances to delay oil degradation, providing better tolerance for exhaust gases and impurities generated within the engine. Technological improvements in oil filters have also contributed to long oil change intervals. Enhanced filtration performance reduces impurities in the oil, such as dust, metal particles, and carbon deposit sediments, allowing the oil to fully perform its functions of lubrication, cleaning, heat dissipation, and sealing. Therefore, long oil change intervals require multi-faceted support to achieve outstanding performance.

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