Washing with ONR

So I made my first rinseless wash purchase the other day and it arrived today. I got a litre of DP rinseless and a 32oz of QEW. Mainyl because I could only find the one one retailer for ONR in Australia and it was $89 plus postage for a gallon! Might wait a month or two before I try that.
So this afternoon when I'd finished work I decided to give the DP a go on my car. My car really only gets dusty so there wasn't much to clean. But I was pretty happy with how slick it felt.
Would diluting and using it in a pressure spray like a waterless be a good idea for dusty rather than dirty cars?