Are urethane bushings worth it?
For anyone looking to upgrade their suspension, poly bushings are a great choice. Here’s how poly stacks up against rubber: Ride Quality: Due to their hardness, polyurethane bushings often lead to a bumpy ride. Since they’re not as good at dampening, passengers are also subjected to a lot more noise and vibration.
Do urethane bushings need grease?
Polyurethane bushing manufacturers advise to never use a petroleum based grease for poly bushing lubrication. Polyurethane should only be lubricated with one specific type of grease to insure long bushing life, and squeak-free performance, Silicone based synthetic water-proof grease.
Do polyurethane bushings improve handling?
They will upgrade your handling, suspension stability, and have increased lifespan so they will be more favorable to folks that enjoy track car handling from their car or for heavy-duty and off-road vehicles, but they won’t do you any favors when it comes to vibration absorption.
Do polyurethane bushings squeak?
Rubber makes no noticeable sound while polyurethane has the possibility of squeaking (if not properly lubricated). Historically, one of the most common complaints about poly bushings is that they squeak where rubber bushings do not. The sound is easily avoided by applying grease to the bushing during install.
What kind of grease is best for bushings?
The best bushing grease is a silicone-based or silicone-impregnated synthetic. The silicone gives the grease a very sticky/tacky property that will help it cling to the bushing and last a long.
How long do urethane bushings last?
With proper care, polyurethane bushings can last the lifetime of the vehicle. The bushings will need to be re-greased every few years. Without proper lubrication, the bushings can wear, squeak, and bind. Some polyurethane bushings have a grease fitting.