What is the far and away most wax friendly shampoo

I am really concerned about using a shampoo that has absolutely no affect on the longevity of the wax on my vehicle. I currently am considering Lusso Auto Bathe after dsms's review on how it didn't affect his sealant. My one big isse with Lusso is that it suggests 1 oz/gallon. I usually use 5 gallons per wash, and it only comes in 8 oz. bottles. that means I'd have to buy a new bottle every other wash?

I currently use Swissvax Car Bath, but it will run out eventually. I was thinking about Meguiar's Mirror Glaze Car wash. I've heard it was solely designed around the idea of preserving a waxed finish after detailing a car. Also considering Meguiars Shampoo Plus and DODO born to be mild.

what you guys think?

 

Duragloss.

 

1Z Perls is my favorite wash....i have also heard good things about #62 car wash..i have #00 wash and it is nice as well...but #00 only sold in 16 oz bottles for 6 bucks IIRC

 

My personal favorite is P21S. On a freshly waxed car its like pushing silk around the paint.

 

I've had great success with Meg's GC, Shampoo Plus and Duragloss 901.