You won't achieve that figure until the engine has loosened up. Compared to the 2.7D engine in my first XF the new 3.0D S seems "tighter", so it could take at another 5K miles plus. On two identical 800 mile journeys to Munich with 1200 miles on the odometers of both cars my 2.7D PL, averaged 35.3 mpg outbound and 37.5 inbound. The 3.0D S Portfolio averaged 33.2 outbound and 34.4 inbound, admittedly there were headwinds both ways.jbapu said:Tank range 643 miles ??? I get around 250-300 is this normal? I have only done 850 miles in my XF, do I need to hold on a little bit longer to see the 600 mark?