with a calculator
Viscosity is resistance to flow of oil Viscosity Index is a scale to measure viscosity
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to calculate viscosity index
The viscosity index refers to the measure of the change of viscosity with a change in temperature.
Heat it up a little to evaporate the volatile burning elements
Well Engine oil manufacturers keep the manufacturing techniques secrets with each others. Most motor oils are made from a heavier, thicker petroleum hydrocarbon base stock derived from crude oil, with additives to improve certain properties. The bulk of a typical motor oil consists of hydrocarbons with between 18 and 34 carbon atoms per molecule. One of the most important properties of motor oil in maintaining a lubricating film between moving parts is its viscosity. The viscosity of a liquid can be thought of as its "thickness" or a measure of its resistance to flow. The viscosity must be high enough to maintain a lubricating film, but low enough that the oil can flow around the engine parts under all conditions. The viscosity index is a measure of how much the oil's viscosity changes as temperature changes. A higher viscosity index indicates the viscosity changes less with temperature than a lower viscosity index.
Well Engine oil manufacturers keep the manufacturing techniques secrets with each others. Most motor oils are made from a heavier, thicker petroleum hydrocarbon base stock derived from crude oil, with additives to improve certain properties. The bulk of a typical motor oil consists of hydrocarbons with between 18 and 34 carbon atoms per molecule. One of the most important properties of motor oil in maintaining a lubricating film between moving parts is its viscosity. The viscosity of a liquid can be thought of as its "thickness" or a measure of its resistance to flow. The viscosity must be high enough to maintain a lubricating film, but low enough that the oil can flow around the engine parts under all conditions. The viscosity index is a measure of how much the oil's viscosity changes as temperature changes. A higher viscosity index indicates the viscosity changes less with temperature than a lower viscosity index.
refractive index is equals to squarroot of relative permitivity
Three oil additives include viscosity index improvers, alkaline compounds, and friction modifiers. Viscosity index improvers reduce changes at high temps, the compounds prevent acid erosion, and the modifiers form protective films on engine parts.
Single viscosity is high quality oil. Mulit-viscosity oil is used for in the winter.
dilution will reduce the viscosity The effect of dilution on viscosity of oil is that it will decrease.
How to determine viscosity of coconut oil