I wonder how similar the Grezoff is to Simple Green? My buddy is a simple green fanatic. Sounds like the bare aluminum thing is common.
Ratickle, you've never heard of CRC?!?! That's like the 4th liquid on the list of must-have liquids: oil,fuel,liquor,CRC... It's like a combination of WD-40, corrosion blocker and PB Blaster. Like Jim said, especially down here in the salt, everything gets a coat of CRC or corrosion blocker after every use. It tends to peal stickers off eventually but it keeps a protective layer over everything.