Results for tag: "Viscosity Index"

The Viscosity Index (VI) is a measure of the change in viscosity of a lubricant or grease with temperature. It is used to determine the suitability of a lubricant for a particular application. The higher the VI, the less the viscosity changes with temperature. This is important for lubricants and greases used in engines, transmissions, and other machinery, as it ensures that the lubricant will remain effective over a wide range of temperatures. The VI market is a subset of the lubricants and greases market, and is composed of companies that produce lubricants and greases with a high VI. These companies typically produce lubricants and greases for automotive, industrial, and marine applications. Some companies in the VI market include Shell, ExxonMobil, Chevron, Total, BP, and Fuchs. Show Less Read more