Doesn't make any sense!!!

The inner steel sleeve of modern suspension bushings is held firm by the nut and bolt and the outer steel sleeve is an interference fit in the suspension member. All angular motion as the suspension goes through jounce and rebound is accomodated by torsional deflection of the rubber bushing - like twisting an eraser.

There are no sliding surfaces and no need for any kind of lubrication.

In order that the bushings not have any preload strain, the bolts should be torqued with the vehicle at normal ride height. For the same reason a car should NOT be stored on jackstands because this places a preload on the rubber bushings when the suspension is allowed to hang. Cars should be stored on the tires and the tires pumped up to maximum cold inflation pressure and checked and aired periodically. Even if the tires do deteriorate, it is a lot easier/cheaper to replace tires than suspension bushings.

Duke