Sorry, I'm not a grease specialist. I suspect you aren't either. There might be a bit more to this subject than you or I know. As a professional bicycle mechanic I consider it worth investigating claims made by people with no credentials on public bike forums before I apply them in my work. Especially when they contradict what I read in credible bicycle repair manuals. Here is a quote from the Barnett's manual Volume 1, fifth edition, page 1-8, "Not all greases are suitable for bicycle use. Bicycle bearings operate in a relatively low temperature range, so grease designed for automaotive use often does not become effective at bicycle operating temperatures.". And from the AMSOIL site "Base Oil - Many different types of base oil may be used in the manufacture of a grease, including petroleum (napthenic, parafinic) and synthetic (PAO's, esters, silicones, glycols). Just as with motor oils and transmission fluids, the viscosity of the base oil is the most significant property. A lighter, lower viscosity base oil is used to formulate low temperature greases, while a heavier, higher viscosity base oil is used to formulate high temperature greases." If you know something that can convince me that you are right and the Barnett's manual is wrong I would like to hear it. Until then I'll continue to listetn to the experts. Whining about price isn't a valid argument either.