Well, when I was using Rain-X, I would typically wash the truck with normal car washing soap, including the outside windows. Then, after the drying is done, the cladding and tires are shining, I would then use some glass cleaner (like Invisible Glass) and wipe and dry that, and then apply the Rain-X.

But I stopped using Rain-X, and now I just want my Windows to shine and stay that way for a while, with no streaking. I will try the vinegar solution next time around and see how that works.

Thanks - Bart

Quote Originally Posted by circmand
Bart I am not sure but I think I may have discovered your problem. Rain X is NOT a cleaner is is more of a glass wax. You need to thoroughly clean and dry your windows before applyng and removing. Done this way it does an awesome job of repeling rain from the windows.