Showing papers by "Scott Bair published in 1988"
TL;DR: In this paper, the authors measured high pressure viscosity, traction coefficient, and EHD film thickness on twelve commercial automotive engine oils, a reference oil, two unformulated base oils and two unformed base oil and polymer blends.
Abstract: Measurements of high pressure viscosity, traction coefficient, and EHD film thickness were performed on twelve commercial automotive engine oils, a reference oil, two unformulated base oils and two unformated base oil and polymer blends. An effective high shear rate inlet viscosity was calculated from film thickness and pressure viscosity coefficient. The difference between measured and effective viscosity is a function of the polymer type and concentration. Traction measurements did not discriminate mileage formulated oils from those not so designated.
15 citations