I have this problem since i bought the car. I sprayed some WD-40 on joint where wiper connects to rod (that was on driver side first) but after a month or so it started squeaking again but on pass. side. Anyone had this problem before? I think i got to take off the wipers and remove plastic cover to regrease all joints on rods. What do you guys think will this help?

 

well, rain will probably wash the WD-40 off. Try to get some kind of clear silicone caulk to put on the squeaky spot.