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Viscosity Improvers

Viscosity Modifiers

Including PARATONE®.

Oronite Branded ProductsAbout Viscosity
The viscosity of a lubricant is influenced by changes in its temperature.  Oil’s Viscosity Index provides an indication of its potential for application over a wide temperature range.  VIIs are widely used in the lubricant field although engine oils represent their largest application. They are used to formulate multigrade oils such as SAE 15W-40 and 5W-30.

PARATONE® Products
Oronite offers the PARATONE family of VIIs which has been a recognized industry leader since the 1930s. The PARATONE product line has several major innovations to its credit including the development of the first Olefin Copolymer VII. Our polymer technology products provide the following benefits:


PARATONE® VII combine excellent viscometric effectiveness with high oxidative stability.

MCC Viscosity Index Improvers
MCC carries a line of “non-licensed” Index Improvers for use in non-licensed applications such as Aftermarket products.  These Viscosity Improvers come in a number of shear stability indexes and can be ordered in solid polymer or concentrate form.