WHAT'S THE BEST LUBE FOR A URETHANE BUSHING................

what's wrong with silicone grease?
WD40?

That's what i ordered and will see if it is any different then dioletrical grease that i have.
It cost me more for shipping then it cast for the three tube of Silicone grease.

WD-40 is not a lubicant as much as a moisture dispersant.

The link given to me above was vary interesting about it.