Optimizing Dispersants in a Lubricant Formulation by Statistical Design - A Simplex Model 922294
A simplex statistical design was used to model the Sequence VE engine performance of two dispersants, P and L, in a lubricant formulation. Dispersant P is a polyisobutylene succinimide, and L a low molecular weight ethylene propylene succinimide dispersant. The model showed that in the Sequence VE test, dispersant L gives superior sludge and varnish performance as compared to dispersant P. Furthermore, there is a synergism in the Sequence VE sludge performance when the two dispersants are mixed in the formulation.
Citation: Liu, C., Migdal, C., Crawford, N., and Yamamoto, R., "Optimizing Dispersants in a Lubricant Formulation by Statistical Design - A Simplex Model," SAE Technical Paper 922294, 1992, https://doi.org/10.4271/922294. Download Citation
Christopher S. Liu, Cyril A. Migdal, Norris R. Crawford, Roy I. Yamamoto
Texaco Additive R&D
International Fuels & Lubricants Meeting & Exposition