I have been calculating, using the ecko viscosity calculator, the viscosity of many differnet popular oils at temps from 0F to 230F. I come up with some interesting curves. If i knew how to attach an excel sheet to this forum i would share it. I dont however believe the results 100%. I believe it is becuause the vairables are going to be different based on the qualityh of basestock and the blended % of PAO. Does anyone know how to calculate Viscosity based on the different basestocks or the amount of PAO blended with x amount of group 3.