I have a 3.0 d XF, and I have family living in Edinburgh as live in Portsmouth. I drove up to Edinburgh with herself at New Years, total distance, 453 miles, M275, M27, M3, A34, M40, M42, M6,M74, A702. stopped twice for a tea and a pee, and filled up before I left Portsmouth, (to the brim 58 litres) did'nt need a top up until I got to Edinburgh with some to spare Average speed 70-85 mph (sorry officer) wee bit faster on the M6 when I could. Same deal on the way back, same route. Is this common? I was expecting to fill up/top up before i got there. its my first XF, had a 2.7 d S Type before. Curious Ray