I use Zaino Z-7 Show Car Wash. I typically buy it within the "Maintenance Pack", which also includes the Z-6 Detail Spray:
https://www.zainostore.com/product/Z-MPACK.html
I use 3 capfuls of car wash solution per 5 gallon Zaino bucket, which has a grit guard.
https://www.zainostore.com/product/Z-BUCKET.html
https://www.zainostore.com/product/Z-MPACK.html
I use 3 capfuls of car wash solution per 5 gallon Zaino bucket, which has a grit guard.
https://www.zainostore.com/product/Z-BUCKET.html