One thing about the grease that keeps me from using it is the Railco Bush at the top of the swivel. This has a vsmall hole in bottom to allow lube in - meaning lube has to travel vertically. Some lube also splashes in around the "ear" of the swivel it's pressed into. Even though Green mentioned that the grease has a low viscosity it's still higher I guess than 90 wt. oil. That bush is the most fragile wear item in the housing - made from a synthetic material (probably soybeans of some kind that comes in contact with top kingpin shaft made of steel. I have used Almasol 601 gear lube (Lubrication Engineers, FT. Worth) since the early 70's when I raced an MG in SCCA. This 90 wt is like honey - it has a very high cling factor and sticks to gears, etc like glue. Everybody has their own poison and this lube was the only thing we found that could keep Jag and MG boxes together under hard racing conditions. In fact this is the only gear lube that I use in my 109 in the 28 years I've owned it.