I believe you are referring to the "Adding stains, grease, and rust" article in the May 2003, page 74, or FSM.
I've made up a data base using Microsoft Access of FSM reviews, articles, and tips going back to 1985. By simply inserting a key word in a query I can bring up the date of the FSM issue. If you ever need any assistance, just e-mail me.
rmcclougha@aol.com