Originally Posted by vtec to vvel

1. machine wash can damage your car. in fact, on the nismo models, there's even a warning sticker on the rear spoiler that machine wash could damage the car.
2. if water doesn't bead off of my car, then i wax. usually about once every 2 months for me.
3. no, water and soap shouldn't wash away the wax coating immediately. too much waxing can do more damage than good.
4. again, water won't immediately wash away wax.