So I am a bit reluctant to start off working with it on a windshield. I would use it on all the other glass on a vehicle although, due to the fact that glass is not rubbed by a wiper, so the RainX remedy may possibly final a pretty lengthy time. I would use it primarily on the external side view ...
For a great deal of the time, your wiper blades sit there, inert, underlining your windshield. But then you come across yourself driving by means of a summer thunderstorm in Oklahoma, or going over Donner Pass in a blizzard, with passing semis depositing a gloppy mixture of slush and street grime...