Well my first Adam's product I used even though I bought them all in one of the kits. I would have to say would be the carwash and was blown away at the amount of suds,lubricity and the lack of spotting it showed.It was and still is my favorite carwash and I have tried a few.Can't wait to give it a try in my new cam sprayer i got for my pressure washer . Which I use for my clients with those big SUV,and vans