Snow foam

[MonkeyP]

Ive started using a company called Bilt-Hamber.

I use Surfex HD with my jet wash and then just give it a once over with car shampoo afterwards. I would also recommend their clay bar as it works with water so its a lot quicker!

http://www.bilthamber.com/

[Mr GTD]

Snow foaming is purely designed to remove loose surface dirt not bonded contaminants, and isn't going to give you a touch less wash,
As has already been said you can just blow over with a pressure washer thoroughly which will remove a majority of nastys on the paint,
When making up my snow foam i use Autosmart active XL tfr in the mix which bumps the foaming up a bit and cleans very well though I would never use this method on a fully detailed and protected car.
for wax stripping I use diluted g101 through the lance.

@Mr GTD Tfr removes the traffic film ie diesel fumes,scum/dirt that accumulates over time and bonds to the paint if left, normal car shampoos can't remove this effectively as they are designed to be gentle.

Thanks for the expo...