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karcher foam lance & Chemical Guys Maxi Suds. Water ratio advice?

AL_B Feb 29, 2008

  1. AL_B

    AL_B Well-Known Member Team Daytona Audi S3 DSG


    Just bought these products for doing pre-wash. I was recommended the Meguiars Shampoo Plus, but just couldn't find anywhere that has any in stock at the moment. So got the Maxi Suds, hopefully, as a good alternative.

    I just need some advice on what ratio of Shampoo to Water I should use.

    Also, for info, my car has Zymol Royale on, will Maxi Suds be ok and not strip the wax?


  2. 1210tech

    1210tech Four Ring Fanatic Team Daytona Team V6 Audi A6 Audi Avant Owner Group S-line owners group

    the maxi suds won't strip the Royale as it is ph neutral but its a bit expensive to be using as a pre-wash thorugh a foam gun.
    you shouldn't really need to add any water to the chemical bottle on the foam lance attachment as the chemical is mixed with water as it sprayed through the pressure washer.

    you can get meguiars gold class shampoo from halfrauds for about £14 for 2 litres
  3. deuce

    deuce Member

  4. WX51TXR

    WX51TXR Polished Bliss

    Around 4:1 (water:shampoo) in the foam gun bottle should be about right, assuming a standard mix ratio of 128:1. However, sometimes a little playing around is needed. A much better bet in the long run through would be Meguiars Hyper Wash, as it is designed for foam usage and has a daft mix ratio of 400:1, meaning you only need to use a tony amount in the bottle to generate very thick foam. It is also safe for use on high end Zymol finishes; we maintain Vintage finishes with it with no problems at all. :icon_thumright:

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