Given the details I would expect calculated fuel economy in the mid to high 40's. At 119 miles is the gas gauge down 2 or 3 pips? I'd buy gas just to see if 2 1/2 to 3 gallons could be pumped. Are you always stopping at the same gas station and using the same pump? Perhaps the pump is off. I would try a different station for a tank or two. Is the parking brake partially engaged?