I had my vehilce for six years now and only remember changing the wiper two times. Last year I bought new ones only because I have never done it before. Johnny has always taken care of it. When I went to Autozone and watched how it was done knowing that I would or could do it myself. I was speaking to my son about it and he recommended a brand name Rain-X so I checked them out and they will remain where they are at $40.00 a piece.