You can follow the links from the post above
ProtectAll QEW IS the product I used.
Thread at Autopia Forum will give you all of the info on few different methods.
I used a bucket that is divided in two. On one side I put two ounces of the QEW and an ounce or two of the Quick Detailer I use which is
Griot's Speed Shine and added 2 gallons of hot water. The other side I put 1 ounce of QEW (makes it easier to clean the bucket) and 2 gallons of water for rinsing my wash mitt and chenille covered sponge I used for the wheels. I also mixed a spray bottle with the same ratios as the first side for pretreating but used it only on the wheels If it is really dirty I would spray the panels first.
You wipe a small section with the mitt or whatever washing material you are using (I prefer the lambs wool mitt but use a MicroFibre towel on the ragtop so there is no linting)and rinse it in the rinse side of the bucket. Then you grab your microfibre towel or waffle weave towel and dry the section. You don't use much pressure in either the wash or dry swipe as you don't want to push anything into the paint. I used a damp microfibre for the first drying pass and then used a dry one for a second final drying swipe. Once done you can do a quick detail on the car for a little extra pop or if there are any streaks from the wash/dry process. I skipped that step as the cars seemed to look pretty good to me after the wash/dry.
The wheels and tires I sprayed them with the QEW mixture and scrubbed the tires with a brush and used a chenille covered sponged dunked in the wash side of the bucket and the brake dust wiped right off ( I do have several coats of Klasse AIO on the wheels which makes them real easy to clean normally). Rinsing off the wheels I just splashed water out of the rinse side with my brush and wiped the wheels down with one of my old microfibre towels to dry them off. This is the only time I really got water on the ground during the wash.
I may wash my car this way from now on even the summer as it uses less water and I stay dry as well. For some reason I always get fairly wet when washing my car.
You should definitely check the link for autopia above as those guys know what they are doing and some go into a lot of detail (no pun intended). I tried this on the back of my S2000 first since it was the dirtiest spot and the silver hides scratches well. I looked closely and didn't see anything so I continued with the rest of the car and the 968. I will try it out on my pickup and 4runner next as they are both dark colors and really dirty. I will probably try the 4 Runner first as the paint sucks and it has 130K on it.
Wow that was a really long post.
Mark