Rear end squeak

Has anyone else had a squeaking problem in the rear suspension of their Regal. I speayed some lubricant on the support points of the rear composite spring and the problem went away. But it cam back within 2 days. It is mostly at low speed and is really irritating, it is more like a creak then a squeak. Any advice would be appreciated. THX

I have the same problem. Haven't had a chance to take my car to the mechanic yet. If you find out how to fix it, please let us know.

Thanks,
Maurycy