+1 on the black grease. I usually use the AE Black grease on all my thrust bearing assembly, whether it be an AE, Tamiya, and other vehicles (actually, I use all AE: stealth lube, shock oil, and etc...)
The "WD" in the "WD-40" stands for "Water Displacement" I believe. When the chemical company was looking for a chemical to displace water, they stumbled onto the current formula on their 40th mix, hence the "40" portion of the "WD-40".
Guys, please correct me if I'm spreading some urban legend of some kind... My source is wikipedia, to quote the author of the Wikipedia article on "WD-40":
is the trademark
name of a widely used water-displacing spray commonly sold in hardware stores and other such retail outlets. Developed in 1953 by Norm Larsen
, then working for the San Diego Rocket Company, it was originally designed to repel water and prevent corrosion,
and later was found to have numerous household uses.
WD-40 stands for Water Displacement, 40th formula
. Larsen was attempting to concoct a formula to prevent corrosion, by displacing the standing water that promotes it. In the process, he arrived at a successful formula on his 40th attempt.
WD-40 is primarily composed of various hydrocarbons