Just did a one off check of my300tdi 110 defender MPG to give me idea of running cost seeing I am likely going to be using for daily commute.
Previously I checked it about 2 year ago on a long haul run and it was between 33 and 36mpg, loaded up and running on SVO.
At moment it's got extreme MT tyres on and roof tent sitting on a full length rack, back is loaded with heavy tools and junk.
Commute is a 36mile round trip through a mix of Wiltshire Urban and A roads. Came out as 29MPG on this one test -