quote:MK, Thanks for taking the time to answer. I'm sure there are some here that understood your answer, unfortunately, I'm not one of them. In laymen's terms, can you just give me some idea of what the difference would be between a 2 cst PAO and a 6 cst PAO where the only apparent difference is the viscosity of the neat oil. What makes the thicker PAO "thicker?"
Originally posted by MolaKule: The relative molecular mass (sometimes called "Molecular Weight")...
quote:Thanks. I think I'm getting a handle on it now. Something you said in your first post got me to thinking. When it comes to hydrocrakced and isomerized Group III oils, no matter how high their purity levels, they still will have all sorts of differnet size hydrogen and carbon molecules, right? Hence, they could never duplicate certain attributes of PAO where the molecular uniformity is the key. Is that correct?
Originally posted by MolaKule: Let me describe the GC (Gas Chromatographg) traces and I think this will illustrate the point for different viscosity PAO's.