Discover the secret of making viscosity index improver additive for lubricant oils. Buyformula website introduce the best authenticated economic technique for making VI additive for all lubricant oils.
Viscosity index improver is an additive that improve the viscosity index of all kind of lubricant oils, Buyformula website will teach you the best method for making high quality VI additive with economic raw materials. Formulas are available in PDF format file, that described in technical English language.