Ok so I put some onr in my pro ik sprayer and pumped it up to 50psi with my compressor. I now have a pressure washer with onr lol. It's enough pressure with the long wand to soak the whole car and get in all the gaps in a few minutes. I did not rinse the car so maybe we can get even Ron to do this lol. I gave it a few minutes got my bucket and onrww and several wash mitts ready. I then rinsed off the car and washed with my onrww. When my wash mitt is dirty I just get another one so I am always looking at my mitt. The car has it's normal amount of dirt on it but i used less mitts than normal. So I guess more dirt was removed with the presoak and rinse . It did not realy remove the heavy dirt from the skirting behind the wheels were I always get a build up of dirt . But I like this method it does not realy take any more time . I use more product but the sprayer uses less than using a bucket and spreads it out evenly and there's enough in the sprayer to do 3 or 4 washes . So I will continue with this method. This will be good for the winter washing all I need to do is find some one that's got some onr in stock lol.