A few days ago I filled the fuel tank on my M756A2 with my DIY diesel. Today I took it to the gas station to put in a few gallons of gasoline into the fuel tank to keep the vegetable oil liquid with snow coming. When I returned I noticed fuel dripping from the top of my fuel tank. After looking around the tank, it looks like the fuel was leaking from around the cap. So, I drove it to both of the auto parts stores in this small town, and they laughed when I asked for a replacement fuel cap for my M756A2. I searched the archives here, but I did not find a source for the fuel cap. So, does anyone know where I can get one or order one, preferably a locking fuel cap?