Just a data point for anyone wondering. My Y is now over 9 months old. I don't use car washes, just hand wash with chemical brothers foam and chemical brothers citris wash, same as I did my 3. Just checked and there's no discoloration on my trim. Those touchless washes are really terrible, people don't realize how caustic that soap is. Additionally, you never know if it is being mixed properly.
^^THIS^^ I live in the West Portland area also, and the Kaady Carwash representative is absolutely correct with this statement. People are seeing the downside of touchless carwashes. They have to "make up" for not touching your car by using stronger chemicals which can potentially damage some car's exterior components. Kaady has the advantage of not only using their own chemicals, but they also use the highest quality mitters in their washes, and they maintain their equipment. Great post Jacko
Especially the windshield in the path of the wipers. This is where the glass is most susceptible to HF acid etching.