It's all in the grease! Poly sway bar bushings don't need grease to function; the grease is just there to eliminate squeaking. It's more important to pick something that is durable, such as a silica (Super Lube, Silglyde), polyurea or calcium/aluminum (marine) based grease. I'm not sure about Astroglide or KY Jelly thoughKuroNekko wrote:I think as long as the bushings aren't blasted with water, they should hold the grease for a decent amount of time. Of course, the type of grease would matter quite a bit and I agree that the original grease was probably less than ideal. However, my bushings didn't start making noise until I rinsed off the underbody with a hose. My guess is that water got into the bushings that way given the grease was mostly gone by that point.
I'm hoping the Sil-Glyde will last a while given its water and heat resistance but it may also be that these polyurethane bushings simply need a re-greasing every 1 to 2 years to maintain optimal lubrication. Time will tell.
Does it rain a lot in your area? It rains quite a bit here so that probably washed away my original grease.
