19th Jun 14 Morning Andrew Just a quick update on the box and my findings I have been running the truck on map 2 plus 2 and the truck has regularly been returning on average 33-34 mpg averaged over a tank of fuel, this is driviing at 70 on dual carrigeways. the only little problem is that if I forget to drop down a gear early enough the truck hiccups. I have now moved the box back to map 1 plus 2 and am currently returning 31 mpg. Also I find if I use Asda or Tesco fuel(Esso) I return a better fuel economy that if I uses Shell Fuel. Cheers Alain