I used CLR with the green ScotchBrite pads. Came out great but my garage gets a bit damp this time of year so I'm now getting a very little bit of light surface rust. Nothing that I can't wipe off with a rag tho. Thought about rubbing it down with Boiled Linseed Oil but I've heard stories of it turning sticky. It's been almost a year as is and it still looks good and shiny.

Before and after pics - http://rustyfiftyone.com/exfoliation/