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Industry info Wiki Q&A
Q what is the thickest oil
EdenBlake
DennisOscar Release Time: April 23, 2024, 6:28 AM
Thick oil refers to oil with high viscosity, meaning it flows slowly at a given temperature compared to thinner, lower viscosity oils. This characteristic is crucial in applications like lubrication, where the oil needs to maintain a protective layer between moving parts under varying temperatures and pressures. Thick oils are particularly beneficial in heavy machinery and older engines, where they can provide better sealing and reduce wear. However, their use must be balanced, as excessively thick oil can lead to increased fuel consumption and reduced engine efficiency due to the higher energy required to pump the oil.
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Q how does oil viscosity work
EdenBlake
OlgaRussell Release Time: April 22, 2024, 7:10 AM
Reading oil weight involves understanding the viscosity grade indicated on the bottle, which tells you how fluid or thick the oil is at specific temperatures. The format typically looks like “10W-40”. The number before the “W” (which stands for Winter) indicates the oil’s flow at 0°F, meaning a lower number indicates better cold-weather starting and flow performance. The number after the “W” represents the oil’s viscosity at 212°F, indicating how thick it remains at engine operating temperature. Higher numbers mean the oil stays thicker under heat, which can be beneficial for older engines or in hot climates. It’s crucial to choose the oil weight recommended by your vehicle’s manufacturer, as using the wrong viscosity can affect engine performance and longevity.
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Q what do the numbers mean for oil
EdenBlake
LauraCook Release Time: April 20, 2024, 1:17 PM
The numbers on motor oil, such as 5W-30, represent its viscosity rating, which indicates the fluid’s thickness and how easily it flows at different temperatures. The first number followed by “W” (standing for Winter) shows the oil’s flow at cold temperatures. The lower this number is, the better the oil performs in cold weather, ensuring easier cold starts and better cold-weather protection. The second number after the dash indicates the oil’s viscosity at high temperatures, with a higher number meaning thicker oil that better maintains its protective properties at higher operating temperatures. This dual rating system, developed by the Society of Automotive Engineers (SAE), helps consumers choose an oil that provides optimal protection across a wide range of temperatures, enhancing engine performance and longevity.
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Q do moths eat polyester
EdenBlake
RudolfBeerbohm Release Time: April 19, 2024, 1:24 PM
Polyester, a synthetic fiber, is known for its durability and resistance to shrinking and stretching. It typically does not shrink under normal washing conditions because of its synthetic nature. Rayon, on the other hand, is a semi-synthetic fiber made from cellulose. It is more prone to shrinking than polyester, especially when washed in hot water or when machine-dried. To prevent shrinking, it’s generally recommended to wash rayon in cold water and allow it to air dry. For garments that blend polyester and rayon, the shrinkage potential largely depends on the blend ratio and the care method used. Always check the care labels for best practices.
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