How about FG gas/oil mix? HobbyTownUSA Minnetonka, HobbyTownUSA Brooklyn Park, Northside Sports Park (Ramsey), Rock N Roll Sound (Elk River), and Hobby Warehouse (Richfield) are all listed as local distributors for FG.

Edit: Here is one of the US Importer's links whose owners are members of this forum and if I recall correctly, also live in MN. There is another US Importer in California.
http://www.molzermoweryracing.com/dealer.html