Ok, do you have an aftermarket front sway bar?
If no.
The factory sway bar bushes are known to wear out.
They cost no more than $40 from mazda
And on a hoist should take no longer than 1/2hr to replace if you know what your doing. 1hr if you don't (most of that time will be finding the right combination of socket universals and extensions)
They can be replaced without taking anything off the car.
Secondly, the factory ones were not, and do not need to be greased.
I tried greasing mine, worked for a day.
If you do have an aftermarket front swaybar, then yes, probably needs greasing.
2013 Ford Focus ST - Performance Blue, Cobb AP
Gone 2006 3 MPS Sports - True Red, Koni FSD shocks, in dash OEM look Ebay GPS/DVD, Hypertech, RX8 Rims