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What is dexos engine oil?

1 Answers

StephanieMarie

07/29/25 2:36pm

dexos is not an engine oil brand, but a certification provided by General Motors to enhance the performance level of engine oil and ensure the quality of aftermarket oil for vehicles. It stipulates that vehicles under General Motors must use engine oil with dexos certification. Engine oil, also known as engine lubricant, is composed of base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties, while additives can compensate for and improve the shortcomings of the base oil's performance. The functions of engine oil include: 1. Reducing friction and high temperatures; 2. Cooling and lowering temperature; 3. Cleaning and purifying; 4. Shock absorption and cushioning; 5. Rust and corrosion prevention.

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