Review on Rain X 620115 Exterior Repellent Fluid_Ounces by Bill Gomez

After a few uses I really learned to enjoy it. You simply apply it to the windows or the entire car with a rag. When it rains, all the raindrops gather into drops and run off immediately, at higher speeds I didn't have to use the windscreen wipers because the water rolls off the windscreen so well that it is equal to or even better than windscreen wipers. Keep in mind this is not permanent, you will need to reapply it about every 2 weeks or every time you wash your car as the soap seems to remove the product. The windshield fogged up for a moment is probably related to this product as it has never been a problem. But it clears up pretty quickly.