
Under normal circumstances, semi-synthetic engine oil should be changed once a year or every 7,500-10,000 kilometers. Here are the details: Advantages of semi-synthetic engine oil: Semi-synthetic engine oil is formulated by blending mineral oil and synthetic oil, combining the characteristics of synthetic oil with the cost-effectiveness of mineral oil. Reasons for regular replacement of semi-synthetic engine oil: The internal components of the engine, such as pistons and cylinder liners, crankshafts and crankshaft bearings, generate friction during operation, producing a significant amount of debris. Although the oil filter traps most of these particles, small fragments remain in the oil. Over time, these particles can circulate and degrade the oil's lubricating properties.


