![]() Viscosity is the most important property of oil when considering engine protection. Find out more about the benefits of synthetic Amsoil motor oil. Synthetic Amsoil products generally have a high VI rating, making them more stable than competitors’ products. You can find the VI of an Amsoil motor oil on its product data sheet. IF a liquid’s viscosity does not change much between these temperatures, it will have a higher VI and vice versa. The viscosity index refers to how much the viscosity of a lubricant changes due to fluctuations in temperature. This would be the “5W” in Amsoil XL 5W-30 Synthetic Motor Oil.Īdditionally, you should be aware of what exactly the viscosity index (VI) is. Dynamic viscosity is measured using the Cold Crank Simulator test, and is used to determine an oil’s low-temperature viscosity grade. This is where the “30” in 5W-30 synthetic oil comes from.Īlternatively, there is dynamic viscosity, which is essentially the amount of energy required to move an object through the lubricant. Kinematic viscosity determines oil’s high-temperature viscosity grade. For example, if you pour two containers, one filled with water, and the other with syrup, you would notice that the water flows faster due to its lower viscosity. If a given lubricant’s viscosity is lower, it will flow faster. Kinematic viscosity is a fluid’s resistance to flow and shear due to gravity. To be more specific, there are two ways viscosity can be viewed: kinematic viscosity or dynamic viscosity. Viscosity, in a general sense, is the measure of any liquid’s resistance to flow. In this article, I am going to explain the different types of oil viscosity, and how you can find the right oil for your motor vehicle. Understanding what oil viscosity is, and knowing how to determine the right oil viscosity for your vehicle is vital to ensuring that your engine is protected.
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