I know these guys weren't painted, unless they were teal like some special HPP trucks, stuff like that,

With that said Im restoring/rebuilding the 727 for VETT1986's charger. Ive scrubbed it really well with soft wire brush, and solvent, then I used purple cleaner, and a light wheel acid and it came out pretty good, but up top, where you wont see it, there are some stains from some grease. I cant seem to get it off,

What are you guys using to clean the aluminum to look NEW cast looking?

Kasey