The spec sheet that came with the coach states that the fuel station capacity is 40 gal. The cargo sticker on the coach states that a full load of gas for the fuel station equals 36 lb which would be a little less than 6 gal. Does this mean the 36 lb of fuel is part of the trailer weight because that is what was in it when weighed at the factory or is the tank only capable of holding 6 gal? I am confused.