 and this may or may not make sense to some of you, a lot of automatic washes have to use more caustic soap to actually do the same thing that a tunnel brush system will, meaning you're just as hard on the paint with the caustic soap. In some cases, they'll put acid in the soap, and I'm not exaggerating. They will, and I know that from past experience. So they'll put acid in the soap to actually make it, quote-unquote, wash better. That's doing just as much damage to your paint and other things on the car.