Hello again, As you'll recall I have a 1990 Volvo 740 2.0 Estate which I've had about a month now. The fuel guage has never worked since the day I got it. If I fill the tank (which seems to be a 55ltr, is that possible?) it reads just under half full and then, as you're driving, goes from being full to empty. Would this be something that's easy to fix or is it best just to fill the tank back up every 300 miles? Thanks in advance, Richard