Q
what does w mean in oil
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
The "W" in oil stands for "Winter," indicating the oil's viscosity grade is suitable for cold temperatures. Viscosity, a fluid's resistance to flow, is crucial for lubrication. In cold weather, oils can thicken, hindering engine performance. The "W" rating, as part of a dual grading system like 5W-30, tells you the oil's flow at 0 degrees Fahrenheit, ensuring the engine starts and runs efficiently in winter. The second number, e.g., 30, represents the viscosity at operating temperature, ensuring proper lubrication at higher temperatures.
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