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Q
engine oil grades explained
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Engine oil grades, designated by the Society of Automotive Engineers (SAE), indicate the viscosity of the oil, which reflects its flow capability at specific temperatures. Viscosity grades are often presented in a format like 5W-30. The first part (5W) indicates the oil's flow at cold temperatures (W for winter), showing the oil's performance at engine start-up. The lower this number, the less it thickens in the cold. The second part (30) indicates the oil's viscosity at high temperatures, representing its ability to lubricate the engine at operating temperature. Higher numbers mean the oil can maintain its thickness better under heat. These grades help ensure the right oil is used for specific engine types and conditions, optimizing performance and longevity. It's crucial to consult your vehicle's manual to choose the correct viscosity grade for your engine.
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