Wiki Tag: viscosity index

About TriboNet

Your guide to the world of tribology

What is TriboNet

An educational platform on tribology — the science of friction, wear and lubrication

Who is it for

Engineers, researchers, students and industry professionals

Topics

Friction, wear, lubricants, coatings, biotribology, nanotribology

Content formats

Wiki articles, webinars, videos, industry news, scientific reviews

Updates

Weekly news, regular webinars, continuous Wiki updates

Resources

500+ Wiki articles, webinar archive, company directory, event calendar

4 more points

Explore Wiki Webinars All news
Viscosity Index

Viscosity Index: The Complete Guide to Understanding & Improving Lubricants 2025

05.12.2025 TriboNet
Temperature - Viscosity Relation [latexpage] Viscosity Index is a measure of a lubricating oil's resistant to flow. It is well-known from Hydrodynamic Lubrication Theory that viscosity plays a central role in the lubrication regime encountered in the machine element -...
Viscosity Index

Viscosity Index : Definition, Important Calculator (2025)

21.10.2025 Riya Veluri
What is viscosity index? The viscosity index (VI) is an arbitrary, unitless measure of a fluid’s viscosity change relative to a temperature change. We can say that the it is the dimensionless number that shows how the temperature change can affect viscosity...