DP 4-in-1 vs. Optimum NRWS and Foam Gun use

[Brace1]

I`m trying to decide between DP 4-in-1 and Optimum NRWS to be diluted as a possible substitute for S&W (or at a minimum as a QD), more so than a true rinseless wash. Was wondering if anyone had experience with both products to compare.



Secondly, I was thinking of using these products as a boost to either Eagle One or PB SSS in the foam gun kind of as a water conditioner. However, according to Autogeek`s description the 4-in-1 creates a sheeting action for the water therefore I was thinking this may kill some foam.



Any thoughts/insight would be appreciated. :buffing:

[Setec Astronomy]

Low-sudsing products typically don`t work very well in the foam gun. You`re really talking about two opposed philosophies, the no-suds, sheeting product (QEW, NRWS, DP 4-1) vs. hi-sudsing shampoos.