High-Temperature Protection The primary role of the higher number in multi-grade oils is to ensure stability at elevated temperatures. The specific number you are focusing on, particularly the second one in the sequence, is a critical indicator of the oil’s high-temperature performance.
Choosing Oil Based on Thickness Grade: Understanding Viscosity and Performance
The increased thickness can help compensate for these worn clearances by creating a stronger oil film, reducing noise, and preventing leaks. Summer Performance Modern multi-grade oils are formulated to perform across a wide temperature range.
When an engine runs, it generates significant heat. This application is a practical use of the principle that a higher grade number means a thicker, more resilient lubricant.
Choosing Oil Based on Thickness Grade: Understanding Viscosity and Performance
The Science Behind Viscosity Viscosity is the scientific term for a fluid’s resistance to flow. The "W" in the designation stands for winter, and the number preceding it indicates cold-weather flow.
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