Best I've had so far is 596 miles from Shell Station, South Anderson Drive, Aberdeen to Folkstone Services. This is on Shell V-Power with 300ml of Tesco 2-stroke added. Next run I'm going to try adding Millers as well, so hope to get it over the magic 600.
TD4, auto-g/box, heavily laden with roof-box as well.
I was trying to reach Dover and make it over the 600 miles, but I chickened out near the end of the A20 motorway.
Put in 63.42 litres so she must have been pretty dry.
It's dual carriageway or motorway all the way down so I just set the cruise control to 70mph (checked on the sat-nav) and wait for the scenery to go by.
It's 21 hour run as we stop for food, drink and a rest every 4 hours.
My mate in Grimsby says it's easy as it's 'downhill all the way from Scotland.'
Been doing it 3 or 4 times a year for over 20 years. Ten of them in Freelanders.
Cheers, Singvogel.
Edit: I am well aware that some folk wont believe this, but I wouldn't have believed it either a few years back before all the mods and work I've done on it.