aux. diesel tank
I would like to add a 25 gallon diesel tank to the bed of my 2004 duramax. Have bought flow kit from northern tools. I belive he fuel system is not vent so I would need a vent or fuel cap that is not vented. I work at a steel fab. shop so I can build the tank but I need a fill cap that will accept the large fill systems of truck stops, any info on the above would be helpfull