They spray a mild acid followed by a neutralizer to get dirt off, then soap and water. It's better than a regular wash, but the acid isn't good for your clear coat or wax.Is touchless just spraying the water with or without the cleaner on the vehicle? Just a high pressure water hose?
Yeah, it kinda comes down to this - it takes some friction to remove dirt and grime, whether it's using brushes or sponges or cloths.Over all, the only type of carwash I would avoid is anything with brushes. Those little micro scratches might not show up right away but over time it will look pretty beat up. Ask my wife's Forester.
Well put. It doesn't really matter, something is going to eventually damage the finish. I recall from previous reading, even touchless car washes damage it. The jet streams of water have enough force that they will cause micro-scratches due to their force.Yeah, it kinda comes down to this - it takes some friction to remove dirt and grime, whether it's using brushes or sponges or cloths.
And if people think they're not micro-scratching their paint with their microfiber cloths and soapy water, they're wrong. Anything that pushes dirt particles around is making tiny scratches, and you can't remove those particles without pushing them around. Yes, you might be delaying the visible effects of the scratches, but your paint is softer than the dirt particles, and it's happening.
I like that people are proud of their vehicles and want to keep them pristine. But I can't be out there hand-washing my truck every few days, and I personally would rather run it through the whirly-brush car wash than drive around with dirt and pollution and bird poop and tree sap and bug innards etching my paint.
I guess everything is a trade-off, but you ain't gonna win against Mother Nature no matter how much you baby your paint.
Correct... but spinning automated brushes are going to do way more damage then my wash mitt when I use the two bucket method or a grit guard. If my vehicle is really dirty I use a pressure washer to blast off the dirt in attempt to keep from dragging the mess all over the paint.Yeah, it kinda comes down to this - it takes some friction to remove dirt and grime, whether it's using brushes or sponges or cloths.