The acid is called "wire wheel cleaner" from "Pro Products" in Santa Anna, California...

This stuff works good too he said:

http://www.detailsupplyoutlet.com/item.htm?item_num=5

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78 Datsun 280Z
86 Peugeot 505
14 Jeep Wrangler Unlimited

“Owning a car is like owning a dog. Every now and then, it craps on the carpet — but it’s still your dog.” - Jeremy Clarkson