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Home > Terms > English, UK (UE) > Viscosity index improvers
Viscosity index improvers
Additives that increase the viscosity of the fluid throughout its useful temperature range. Such additives are polymers that possess thickening power as a result of their high molecular weight and are necessary for formulation of multi-grade engine oils.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Industrial machinery
- Category: Industrial lubricants
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