Hey guys , thanks for your replies so far , been checking them while in work
as a result of your suggestions i tried a few things on the way home this evening after my car had been stood in the works carpark for the previous 8 or so hours
Timed how long it took the gauge to get to its usual 90 Degrees C point = 6 Mins
This equated to a distance being travelled of exactly 3 miles , which was a mixture of small roundabouts , and some 40/50 roads
The rest of my journey was then another 8 ish miles and about 25 mins which comprised of a lot of town driving so a fair few stop starts being rush hour and all.
Once home , i pulled into the driveway , before killing the engine i hopped out and got as close to the front end as then cut the engine as per Apples12 suggestion , could not hear any signs of a fan spinning , be that slower or otherwise.
During the entire journey my average mpg peaked at a stunning 31.4 MPG
Sorry if that all sounds a bit anal and all , you know measuring times and such but i do not have access to a vagcom and when it comes to fault finding i like to be a bit meticulous and go through things step by step
hope this helps someone :)