...Gauge and MFD on mine are pretty accurate - confirmed that recently when I ran out...!! Unfortunately I was going on the fact that it's supposed to be a 75 ltr tank and only ever put about 67 ltrs in when both the MFD and gauge said it was empty........ however there seems to be only approx 69 usable ltrs....as that's how much it took to fill it up post the run-out....!!

Typically I ran out in sight of the garage....but was stuck on the motorway....!!!