Hi there,im just looking for ideas.I have a 2003 golf tdi 130bhp(i think although it could be 150)Having filled up the tank with diesel ive done around 180 miles and its already on half a tank with no visible signs of a leak.The readout tells me im doing anywhere between 38 and 55 mpg but i would of thought a full tank would of got me atleast 500 to 600 miles,any ideas anyone?