I used to use Zaino, but ordering was a pain in the butt.

I am now using Meguiars Gold Class. Lots of suds and is slick.

 

Meguiars Gold Class. Costco had them on sale a while back $10 for one gallon. Don't use any house detergent unless you want to strip off wax. Use strictly car shampoo and there is a different between each one of them. I'm not saying Meguiars are the best out there, but that just my opinion from experience.

 

Meguiar's Gold Class is a popular soap which you can found locally. My two personal favorites for soap though are Optimum Car Wash and Poorboy's Super Slick & Suds. I buy them both by the gallon.

 

 

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I use Megs GC because it's locally available, very inexpensive and works very well.