Powerflex wishbone bushes, your experience

[Magicarcher]

Can anyone give me any feedback on your experience with powerflex wishbone bushes after high mileage.

I was planning to do this to my Z4 but have a concern. I fitted powerflex anti roll bar bushes on my mini and they are great for about 15,000 miles, then they squeak really badly and I have to remove them and re-grease. No big deal on anti roll bar bushes, takes about 40 minutes all in.

I notice the powerflex wishbone bushes have a hard plastic tube that rotated within the polyurethane bush and again relies on grease. I am concerned with time the grease will dissipate and these too will squeak and perform poorly. But unlike anti roll bar bushes it will be a much bigger job disassembling and reassembling to re-grease.

Has anyone had these for any length of time/mileage?

What are your experiences?

 

[Steve84N]

They are fine after 20k. They have a cross hatch pattern to hold grease and the end flares out so it shouldn't come out. No NVH issus and better steering feel. It's also pretty easy to get them off.

 

[GuidoK]

I've had them in now for 30k miles/6 years without having to relubricate them.
Cant say anything about arb rubbers as they come off once in a while (although I've had them for about as long) when I work on the car (arb's have to come loose for quite some jobs). But the construction of the poly arb bushings is the same as the oem ones. A normal oem bushing doesnt require lubricating because there are no sliding surfaces, but for the oem arb bushings that is thus not so, so they're just as likely to squeak as poly ones.