I gotta put my two cents in here. In the mid 1960s while working my way through college i spent a year working for National Can Co. in Cleveland. We did a lot of Valvoline and private label (re-refined) quarts and 2-gal. plus others. That plant was doing soldered cans in 1966-67. I remember the Valvoline qts. were packed in smaller cases because "wimmen" unloaded the boxcars at the filling point. Valvoline also used recycled tinplate on the lids. The inside of your can may have a Gulf logo lurking there. OSHA quickly shut the plant down in the 70s. I still have scars from working there... a nurse was always on duty to sew us up when a line jamed and sharp metal was all over the place. Memories.
[This message has been edited by autoartist (edited 09-09-2003).]