If traffic allowed you unimpeded driving then cruise control would give you the best on motorways, If you have a light foot then close to 40mpg is a reality and if sticking to 60-65mph, just over 40mpg is realistic.
Use the info button on the left stalk and look at your instant fuel usage, adjust your foot to suit.

EDIT: On my run from Hull to Liverpool M62, I acheived 40.6mpg with my SD4 that was because I was early and it's not my usual laid back driving, so it can be done.
Must admit though to not being bothered, I just fill up when its needed and my style of driving alters day to day so mine has dropped to the low 30's when my foots a bit heavy.

I've just had a run up to Lancashire (from Hampshire) and achieved 42.5 mpg doing 68-70 on the motorway. I didn't use cruise control (not very M6 friendly!), which can normally be quite relaxing but does tend to put the clog down on steep inclines. I now find I can use 6th gear much more for cruising, which I rarely did in my last diesel as it was more fuel efficient at 2500 rpm rather than 2000 rpm under load. Also, I have only really noticed this increase in mpg since changing to exclusively Shell V Power diesel for about the last 6k miles. Urban runs return 35-37.5 mpg.

Welcome along, hope your mpg is gonna be better than mine, our gs td4 manual is only doing 30.9 does about 75 miles a week with my wife driving very short trips round local villages , still very new only done 1300 miles it's 2 months old on Thursday, but we love it. Btw like your colour, and I had plenty of stick for having a white one but I got through it, theres a good bunch on here and I've had a few chuckles reading the threads on here .

At 1300 miles your engine will still be bedding in. Realistically you won't see optimum fuel consumption until you've done at least 5000 miles if not 10000. My TD4 150 bhp manual is currently on 11000 miles and giving an indicated 38 mpg over the last 1000 miles.

Short trips and 75 miles a week will also kill consumption as the engine will not be getting up to peak operating temperatures.

Hi gang, me again!!!

Managed to read up on how to post a pic on the site and I thought I would give it a go.
Its not the best pic I know but I am going to take a few better ones later!

Here we go lets see if this works!!!

 Many Thanks,

Ade
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2011 Freelander 2 XS Auto TD4 (150BHP).
Orkney Grey with Ebony/Lunar Alcantara and Napoli Interior.
Front & Rear Carpet Mats and Armrest Pack.
=====================================

Yip, thats OK

Top tip, keep verticals vertical and horizons horizontal just me being nerdy with pictures.

I use V power, definately better all round

Hi Taztastic,

Oh yeah I see what you mean.... looks like its driving up hill!!!!

Think I slipped whilst taking it as I was in a hurry!! Sorry about that! Many Thanks,

Ade
=====================================
2011 Freelander 2 XS Auto TD4 (150BHP).
Orkney Grey with Ebony/Lunar Alcantara and Napoli Interior.
Front & Rear Carpet Mats and Armrest Pack.
=====================================

Ignore him - photo looks great  2002 Honda VFR800
2002 Toyota Celica 140 Silver (mid life crisis - again!)
2007 FL2 GS Manual Army Reconnaissance Green + freel2.com sticker
2004 Toyota Celica 140 Black - Gone
2000 Toyota Celica 140 Silver - Gone
1998 Toyota Celica ST Pearl Green - Gone
1996 Nissan Primera 1.6 - Gone
1994 Rover Montego 1.6 Auto - Gone