Rain-X is great. One word of warning….check your manual to be sure it does NOT say to not use washer fluids with carnauba wax. I didnt know this in my RAM. The wax in the Rain-X to make the water bead up, coats the sensors in the washer fluid tank, causing your sensor to show….no washer fluid so the light would stay on constantly. In addition, on my RAM, the wax on the windshield would mess up the auto-rain wiper sensor.
Just some things to consider, not sure if the new Denali models have extra sensors, etc. I ended having to replace my fluid reservoir sensor and my auto wipers never worked right after using with Rain -X fluid. I am back to using it on my Canyon.
X
