I tried one made by STP and wasn't very pleased with it. If you find one you are going to try make sure you apply it as directed. When it says to thoroughly clean the window before application, clean it thoroughly. Once you put any type of rain-X product on your window, anything that was on the window under the rain x will be there for good. Even though the rain x product loose effectivness over time it is almost impossible to get them completely off the windows. Rather than doing this I would suggest replacing the rubber in your windshield wippers and getting a good additive for your winshield washer fluid. There is one in "The Star" magazine that has been used in germany for a long time. Claims to cut "road grease" better than anything, and that's the real problem.



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Jason Priest
1986 420SEL