Bob..Thanks for your reply. William....So far in my search for truck products, I'm supposed to meet a guy in about an hour that sells to truck and body shops. He is from a outfit called Auto Magic and has a couple of products....Alum Brite and Spoke #66. Also called a plating service and he said to bring the engines by and maybe he could help. I'll let you know when I find something. Still need your reply on the muratic acid. Thanks Dave